Alex+'s+Science+Journal

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=Title Page = = = Living Systems  What are living systems????

I know that a “system” is objects working together. But since it says “living systems” then there are no objects, but living things.   e.g. - coral reef - sea life - animals - human body - and much more.



Organisms need.


What are some things that all organism need ??? 24/02/09 Alexandre

· Water · Food/nutrients · Air

· Ambient temperature · Body waste system · Body system · Earth · Shelter X · Exchange of gas O2 to CO2 · Blood · Warmth X · Lungs



Microscope Observations.
 24/02/09 Alexandre

My microscope observations:

1.Tap water Moving white cells Bubbles of water 2.Pond water More moving white cells I think that the dirtier the water the more white things there are. 3. Green leaf Small water bubbles Breathing holes Big red thing in the center 4. Dead leaf Water bubbles again Red breathing holes

Conclusions: Our conclusion is that everything needs water and that everything is made of smaller pieces like water, air and cells. Inside cells there are molecules.



Human Cell Challenge
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 * <span style="color: rgb(7,100,83);">How do human cells get the things to survive? They get it from nearly all from water. Water has oxygen, food etc. They use natural resources. Maybe the take some from us. Now I know that they get the food and gases from the water and the rest from us.
 * <span style="color: rgb(7,100,83);">How do they get food? I think they get food from the water. We saw that there is smaller molecules in water maybe it eats those. Or maybe they take food from us. Now I know that they get food from the water that surrounds them.
 * <span style="color: rgb(7,100,83);">How do they get water? I think they get water from the water they live in. Or maybe they take some from us. Now I know they get water from the water that we drink. When we drink water it goes around them and then they drink it.
 * <span style="color: rgb(7,100,83);">How do they get oxygen? I think they get oxygen from water because there is oxygen in water. Or maybe they take some from us. Now I know that they get oxygen from the water around them.
 * <span style="color: rgb(7,100,83);">How do they get rid of waste? I think they have an anus that allows them to get rid of waste. Now I know they have an anus.

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<span style="color: rgb(7,100,83);">Circulatory System Review
<span style="color: rgb(7,100,83);"> Answer these questions: 1. What are the basic needs of all living cells? The basic needs are food, water,gas and a hole to get rid of waste. Nice Work. Correct. OK 2. How do the cells in multicellular organisms get the resources they need to stay alive? They get it from water and from us. Good Job. Correct, x 3. What is the main function of the left side of the human heart? It pumps oxygenated blood all around the body. Great. Correct. OK 4. What is the main function of the right side of the human heart? It pumps the carbon dioxide out of the body. Super. Correct. 1/2 5. What is the function of the red blood cells? They give you blood you need to survive. Awesome. Correct x 6. What are the main kinds of blood vessels and what functions do they perform? Blood cells. They help carry food around the body and the white blood cells. They fight the viruses so they don't get into the body. Excellent. Correct x 7. Describe what happens when blood flows through the lungs. Blood receives oxygen from the lungs. When we breathe the lungs get filled up with air. Then the oxygen gets transfered to the blood. All-right. Correct. OK 8. Describe what happens when blood in capillaries flows past cells. Blood carries oxygen into every cell of the body. You rock. Correct. x

Score: 3.5/8 Disappointing, Alex! 14/3/09 Ms Hahn's corrections for you: 1. Food, water, gas exchange, and waste removal! 2. Blood flowing through the circulatory system delivers nutrients and removes waste 3. It collects blood from the lungs and pumps it to the body tissues. 4. It collects blood returning from the body tissues and pumps it out to the lungs. 5. They carry oxygen from the lungs to the cells, and carbon dioxide from the cells to the lungs. 6. Arteries carry blood away from the heart. Veins carry blood to the heart. Capillaries touch all cells and carry out gas exchange and nutrient delivery. 7. Red blood cells release carbon dioxide for elimination and pick up oxygen for delivery. 8. Cells take water, food (sugar), minerals, and oxygen from the blood and transfer wastes to the blood.

=<span style="color: rgb(7,100,83);">Video: Circulatory and Respiratory Systems. = <span style="color: rgb(7,100,83);">

<span style="color: rgb(7,100,83);"> Discussion after Video:
 * <span style="color: rgb(7,100,83);">There a LOT (millions) of air sacs in the lungs.
 * <span style="color: rgb(7,100,83);">The Bronchi is the tube that the oxygen and carbon dioxide go through to go in and out.
 * <span style="color: rgb(7,100,83);">The lungs have lot of tubes. They look like an upside down tree!
 * <span style="color: rgb(7,100,83);">White blood only live three days.
 * <span style="color: rgb(7,100,83);">White blood cells help fight viruses.
 * <span style="color: rgb(7,100,83);">There is different types of blood: A,B,O or AB.
 * <span style="color: rgb(7,100,83);">The Circulatory and Respiratory System do not need a warm up for sports.
 * <span style="color: rgb(7,100,83);">You can enter the lungs by your mouth and nose.
 * <span style="color: rgb(7,100,83);">People need healthy blood to survive.
 * <span style="color: rgb(7,100,83);">The left part of the heart is the blood without any oxygen, the right part of the heart is the blood that is transported to EVERY blood cell.
 * <span style="color: rgb(7,100,83);">Arteries takes the blood around the body and the veins bring the blood back.
 * <span style="color: rgb(7,100,83);">Half of blood is plasma.
 * <span style="color: rgb(7,100,83);">CO2 removing red blood cells,.
 * <span style="color: rgb(7,100,83);">2 million blood cells are produced per second.
 * <span style="color: rgb(7,100,83);">5 million red blood cells are in one drop of blood.
 * <span style="color: rgb(7,100,83);">8 million white blood cells in one drop of blood.


 * 1) <span style="color: rgb(7,100,83);">What happens to the heart rate when you exercise? The heart beats increase because you need more oxygen to keep on going.
 * 2) <span style="color: rgb(7,100,83);">Why does that happen? To supply the red blood cells to transport the oxygen to all the cells in your body.
 * 3) <span style="color: rgb(7,100,83);">How does this the cells in your body? It helps then so they keep on being active and helps you be alive. They can release the carbon dioxide.
 * 4) <span style="color: rgb(7,100,83);">what happens if a blood vessel get cut? The blood platelets form fibrin to stop the blood from coming out.
 * 5) <span style="color: rgb(7,100,83);">How does this help the cells in the body? So the blood doesn't all drip out at the same time and if there is no blood the cells cannot have oxygen and get rid of waste, then you die.
 * 6) <span style="color: rgb(7,100,83);">What other kind of cells are in the blood and what do they do? White blood cell- they stop diseases from coming in the body.

<span style="color: rgb(7,100,83);">Video:Digestive and Excretory Systems
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<span style="color: rgb(7,100,83);">Water-Nothing will happen. It will be soaked up only. Acid-It will dissolve. Pepsin-It will dissolve not that much. Ensign-it will not dissolve.
 * <span style="color: rgb(7,100,83);">Esophagus is the tube that the food you eat goes through.
 * <span style="color: rgb(7,100,83);">The acid breaks the food into small pieces.
 * <span style="color: rgb(7,100,83);">Gastric juice is the acid. It is inside the stomach.
 * <span style="color: rgb(7,100,83);">The saliva helps the food go down the esophagus.
 * <span style="color: rgb(7,100,83);">The cells take the food when it is very small.

<span style="color: rgb(7,100,83);">
 * <span style="color: rgb(7,100,83);">I was right.
 * <span style="color: rgb(7,100,83);">The small intestine is as long as three grown men.
 * <span style="color: rgb(7,100,83);">The kidneys filter waste.

=<span style="color: rgb(7,100,83);">Heart Dissection = <span style="font-size: 16pt; color: rgb(7,100,83); font-family: Tahoma, Geneva, sans-serif;"> A pigs heart is a round organ that pumps the blood around the body. We estimated it was about 1/10 of the pig itself (quite small.) First we cut open the right part of the heart. We saw the right atrium and the right ventricle. We saw tissue on the side and the vein that gets rid of the waste. It was white and red inside. Then we search for the valves on the right side. We saw both of them close to each other. Then we looked at the left side of the heart.We saw the left atrium and the left ventricle. We looked for the two other valves. It was the same thing as the right part of the heart. At the end we were aloud to do what we wanted wit the heart. We decided to search for unusal things. We saw a black piece of meat stuck to the tissue. We also saw - we don't know the name of it - a thing that was very hard and impossible to cut off. I wonder what it was. We took a lot of photos, here are a few: This is the heart. This is the This is the left This is the The tube pumps right part of part of the heart. "thing" we oxygen around the heart.We There is the left could not cut. the body. could see the atrium and the right atrium and left ventricle. the right ventricle. <span style="color: rgb(7,100,83);">

1. Why do people eat food? They eat food because the cells in your body need food so the sugar from your food is extracted and the blood cells send it to all the other cells in the body. Then when they have the energy they continue working. 2. What happens to food in the digestive system? The food breaks in to smaller parts so the cells can take food easily. Then they go in the acid to be in even smaller pieces. After that the blood transfers the sugar to the cells. 3. Describe the path taken by food as it passes through the digestive system. First the jaws break it, then the saliva makes it easier to pass the esophagus. Then the food goes in the acid to get even smaller. Finally he blood caries it to the cells. 4. Explain what happens to food at each place in the digestive system. In the mouth the food gets cut in medium chunks. In the esophagus the food goes down to the acid. Then the acid breaks it in tiny pieces. 5. How does digested food get to cells? The blood brings all the sugar to the cells in arteries. Then the cells take it. 6. Why do people need kidneys? The kidneys wash the blood 25 times a day so it doesn't get too dirty. 7. Describe how kidneys work. The kidneys turn the waste of cells and the poison of the food into urine. Then when you go to the bathroom it comes out.
 * //<span style="color: rgb(7,100,83);">THE DISASSEMBLY LINE //<span style="color: rgb(7,100,83);">REVIEW **<span style="color: rgb(7,100,83);">

<span style="color: rgb(7,100,83);">What support does the digestive system provide for cells? The digestive system provides the food and energy for cells to continue to work in your body without stopping. It provides it by distributing energy for EVERY cell in the body. What support does the respiratory system provide for cells? It provides oxygen to every cell in the body. It provides it by getting the oxygen to every cell in the body. The blood cells pass it around to the cells. What support does the circulatory system provide for cells? It passes all the things that the cells need to live around the body using the blood. What support does the kidneys provide for cells? The kidneys provide the cleaning of the blood that flows in the body.

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=<span style="color: rgb(7,100,83);">Glossary = <span style="color: rgb(7,100,83);">Pulse - the result of the blood being pushed through the blood vessels by the beating of the heart. Heart - the organ that pumps the deoxygenated blood to the lungs and the oxygenated blood around the body.Blood Vessels - the arteries and veins that that carry blood around the body. Cell-the basic unit of life. Oxygen- an atmospheric gas (in the air) needed to support life. Carbon Dioxide- a waste gas produced by living things. Blood- liquid that flows to and from the cells in blood vessels. Blood Vessels- The arteries, veins and capillaries that carry blood around the body. The human heart has 4 chambers- right atrium, left atrium, right ventricle and the left ventricle. Circulatory System- includes tissues ( and blood vessels)and organs (heart) that transport life-support substances to cells AND removes waste. Respiratory System- includes the tissues and organs (lungs) that provide the gas exchange (CO2 & O3) between the blood and atmosphere. Cross section- is a cut a cut across an object and exposes it's internal structure. Vascular Plants- a multicellular plant that has vessels for transporting water, minerals, and sugar to all it's cells. Xylem- found in vascular plants. Tubes to transport water and minerals to cells. Phloem- found in vascular plants. Tubes to transport sugar to all the cells. Sap- the sugar-rich liquid flowing in the phloem. Classify- Sorting things out into classes or groups. (Scientists do this all the time.) Palmate, Pinnate, and Parallel- The three ways vascular plants can be classified. Stomata- A pore (hole) in a leaf used for gas exchange. Food- the source of energy and building materials for living cells. Photosynthesis- is a chemical process in which cells provide energy (rich sugar) molecules and release. Fat and protein- groups of nutrients that provide energy and building blocks for growth and development. Mass- a quantity of matter. Sunlight- a solar energy. Light from the sun. Starches- are chemicals produced by plants to store food. Molecules- a particle made of two or more atoms. A sugar molecule is made of carbon, hydrogen and oxygen atoms. Yeast is a singled celled organism. Cellular respiration is the process by which plants and animal cells break down sugar to get energy, re;easing carbon dioxide in the process.

=<span style="color: rgb(7,100,83);">Vascular Plants = <span style="font-size: 16pt; color: rgb(7,100,83); font-family: Tahoma, Geneva, sans-serif;"> Vascular plants are plants you see everyday like wheat, tomatoes, lettuce, raspberries, celeryand just normal trees!

Pinnate:

There is one main midrib from which the other nerves derive. Palmate:

The nerves diverge from from the main point such as fingers do in the hand. Parallel:

Veined leavs: the veins run at the same distance to each other.

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<span style="color: rgb(7,100,83);">Celery Experiment A
<span style="color: rgb(7,100,83);"> Design an experiment to get information about rootless celery and water. The materials available to you include: 2 Stalks of celery with leaves 2 Stalks of celery without leaves 4 Vials
 * <span style="color: rgb(7,100,83);">Experimental Design **<span style="color: rgb(7,100,83);">

1 vial holder

measurement tools While you work on your experimental design, think about these three things. • Leaves might affect how celery interacts with water. • The mass of the celery might change. • The volume of water in the vial might change. Which stalk of celery will absorb the most water. **<span style="color: rgb(7,100,83);"> **<span style="color: rgb(7,100,83);">Plan to answer our question: ** <span style="color: rgb(7,100,83);"> 1. Put the same of water in a cup. 2. Place the leafless celery and the other one in two different cups. 3.Wait 24 hours and check the celeries. 4.Record our answers.
 * <span style="color: rgb(7,100,83);">Testable question:

My Conclusions for Celery Experiment B.

=<span style="color: rgb(7,100,83);">Notes on Video Plant "Structure and Growth": = <span style="color: rgb(7,100,83);">

<span style="font-size: 150%; color: rgb(7,100,83);"> **<span style="color: rgb(7,100,83);">CELERY OBSERVATIONS AFTER 1 DAY BUT //<span style="color: rgb(7,100,83);">BEFORE //<span style="color: rgb(7,100,83);"> MEASURING 1. What is the general condition of the celery stalks compared to yesterday? ** <span style="font-size: 150%; color: rgb(7,100,83);"> **<span style="color: rgb(7,100,83);">The stalks are just a little black on the edges. I guess they are getting old. ** <span style="font-size: 150%; color: rgb(7,100,83);"> **<span style="color: rgb(7,100,83);">2. How did the water in the vial change from yesterday? The water got dirtier and there was was way less. The leafless stalk absorbed only 5ml but the leaf one absorbed 17ml ! 3. What do you think happened to the water? I think a lot got absorbed but some eva ****<span style="color: rgb(7,100,83);">porated. On the side we could see condensation. ** <span style="font-size: 150%; color: rgb(7,100,83);">
 * <span style="color: rgb(7,100,83);">The plants with veins are vascular plants.
 * <span style="color: rgb(7,100,83);">All plants have tissues an organs.
 * <span style="color: rgb(7,100,83);">Plants have cell walls.
 * <span style="color: rgb(7,100,83);">They are multi-celled.
 * <span style="color: rgb(7,100,83);">Plants have chlorophyll.
 * <span style="color: rgb(7,100,83);">Plants always keep growing.
 * <span style="color: rgb(7,100,83);">The biggest living thing is General Sherman.
 * <span style="color: rgb(7,100,83);">Xylem is a one way street.
 * <span style="color: rgb(7,100,83);">Xylem goes up and Phloem goes everywhere.
 * <span style="color: rgb(7,100,83);">Root hairs take out the nutrients out of the soil.
 * <span style="color: rgb(7,100,83);">Roots always grow dow. It's called geotropism.
 * <span style="color: rgb(7,100,83);">Plants with no roots take what they need from air.
 * <span style="color: rgb(7,100,83);">Cuticle is the outside layer of a leaf.
 * <span style="color: rgb(7,100,83);">What do all plants have in common? They all have tissues and organs.
 * <span style="color: rgb(7,100,83);">Xylem and Phloem are the two types of vascular bundles.
 * <span style="color: rgb(7,100,83);">What does Xylem do? Gives plants water and nutrients.
 * <span style="color: rgb(7,100,83);">What does the stem do? It connects the roots to the leaves and helps the plant stand up tall to the sun.
 * <span style="color: rgb(7,100,83);">Where does photosynthesis occur? In the mesophyll.
 * <span style="color: rgb(7,100,83);">What do roots do? It takes in water and nutrients.
 * <span style="color: rgb(7,100,83);">All plants are multicellular.
 * <span style="color: rgb(7,100,83);">They have rigid cell walls (It stays still).
 * <span style="color: rgb(7,100,83);">They all have chlorophyll.
 * <span style="color: rgb(7,100,83);">All have tissues and organs.
 * <span style="color: rgb(7,100,83);">The phloem gives the sugar all over the plants.
 * <span style="color: rgb(7,100,83);">What is in common between tree and the stem of a flower? They both have vascular bundles.
 * <span style="color: rgb(7,100,83);">The rings in a tree are the new tissues every year.
 * <span style="color: rgb(7,100,83);">Why are some if the trunk rings are narrow in the cross section? The wetter the year the more the vascular tissue.
 * <span style="color: rgb(7,100,83);">How is the vascular system in plants is the same as the circulatory system in plants? They both get rid of waste and the gas exchange.

**<span style="color: rgb(7,100,83);">RED DYE CELERY OBSERVATIONS 1. What did you observe when you first looked at the red-dyed whole celery stalk?

It had some red on the outside. It stopped at the part where the stem curves. 2. What did you observe when you then looked at the cross section of the celery stalk? I saw red dots all around. 3. What do you think the red dots are in the celery stalk cross section? I think they are xylem that we learned about 4. What is the relationship between the red dots and water in the celery stalk ** <span style="color: rgb(7,100,83);">? The relationship is that the water goes through the channels. Conclusion:The celery stick with leaves absorbs more waster faster than the other.

1 What structures do vascular plants have for transporting water? The structure is xylem. (not so sure) 2. What structures do vascular plants have for transporting sugar? The structure is phloem. (not so sure)

<span style="color: rgb(7,100,83);">
 * <span style="color: rgb(7,100,83);">Celery Condition || <span style="color: rgb(7,100,83);">Starting volume of water (ml) || <span style="color: rgb(7,100,83);">Ending volume of water (ml) || <span style="color: rgb(7,100,83);">Starting mass of celery (g) || <span style="color: rgb(7,100,83);">Ending mass of celery (g) ||
 * <span style="color: rgb(7,100,83);">No leaf A || <span style="color: rgb(7,100,83);">25 ml || <span style="color: rgb(7,100,83);">20 ml || <span style="color: rgb(7,100,83);">27 grams || <span style="color: rgb(7,100,83);">29 grams || <span style="color: rgb(7,100,83);"> ||
 * <span style="color: rgb(7,100,83);">Leaf 1 || <span style="color: rgb(7,100,83);">25 ml || <span style="color: rgb(7,100,83);">8 ml || <span style="color: rgb(7,100,83);">28 grams || <span style="color: rgb(7,100,83);">31 grams ||
 * 2. ** ** My Terrestrial Environments Journal

We used one basin, some soil(1 liter), 800 ml of water, some rocks(50 ml) and sand (500 ml)and radish,clover, barley,pea and corn seeds.

Terrarium Observations 24/04/09: I saw one clover plant sprouting. I saw that our terrerium was dry. We added some water (150ml). There was no condesation. The soil was a little wet but the sand a rocks under it were completely dry. <span style="font-size: 11px; color: rgb(7, 100, 83); line-height: normal;">__PHOTOSYNTHESIS__ ** <span style="font-size: 15px; color: rgb(7,100,83); line-height: normal;">The form of food produced in plants is sugar. The process that makes sugar is called PHOTOSYNTHESIS. PHOTOSYNTHESIS happens in green cells. This is the equation: **<span style="font-weight: normal; font-size: 16pt; color: rgb(7,100,83); font-family: Tahoma, Geneva, sans-serif;"> Review Questions: Photosynthesis

1. Sugar is the nutrient that plants use as energy. 2. The raw materials that the plants need to create sugar molecules are carbon dioxide and water. The raw materials come from the sun. 3. The role played by chlorophyll is that it absorbs red ad blue light and that makes the green reflect on the plants. 4. The product of photosynthesis is the sugar. It goes into the phloem tubes and goes where it's needed. 5. Plants produce food in the leaves because photosynthesis makes the sugar. 6. I run on solar energy because, because when we eat, we eat energy stored by plants.

In our group we added some sugar. When we added the sugar to the bag with crunched cookies with water in a warm water bath, the sugar made a great difference and had a lot of activity. The flour hardly had any activity. Conclusion: Yeast is activated by sugar and not by flour. Sugar needs sugar as a food source. Solar energy must be present with the 6 molecules of carbon dioxide and the 12 molecules of water in order for photosynthesis (or the making of sugar) to occur. My cells only process sugar. Everything that goes in my mouth except for water will change to sugar. Terrarium Observation 27/04/09:

I saw that the corn has grown a lot. The pea seeds have also grown. The first seed to sprout was the clover. One sprouted a little, but the corn is the longest.

Terrarium Observations 29/04/09

The corn 1 is 14 cm high, the corn 2 is 4 cm, clover 1 is 2 cm high and the pea 1 is 1 cm high. I have noticed that the corn is getting higher than the top. We have to keep the top off permanently. I think the soil is also dry. We should add some water.

Terrarium Observations 01/05/09:

Today 2 more seed sprouted. Now we have 6 seeds in all. I think we need more water. The terrarium is getting dry but since it is going to rain we will not water it.

Terrarium Observations 6/05/09

I have noticed that our terrarium is very dry and a lot of plants are dying. We are going to add 200 ml to the terrarium. Terrarium Observations 11/05/09 I have noticed that all of our plants are dead or dying. I think they didn't have any water for the weekend. <span style="font-size: 16pt; color: rgb(7,100,83); font-family: Tahoma, Geneva, sans-serif;"> <span style="color: rgb(7,100,83);"> ** <span style="color: rgb(7,100,83);">Vascular Plants Thinking: 1. Describe how all the cells in a vascular plant gets sugar. The cells get the sugar from the phloem tubes. The phloem tubes go from the top of the leaves down to the roots. The sugar is mixed with water. The liquid is called sap. 2. Describe how all the cells in a vascular plant get water. The cells get the water from the xylem tubes. These tubes start in the roots and go up to the tip of the leaves. The xylem tubes also carry minerals in the water. 3. Why do the leaves turn pink when a celery stalk is placed in red dye. The leaves turn pink because the plants absorb the water. Since the water is red you can see it in the xylem. The red water dyes the xylem pink. 4. In what ways are blood and sap the same. Questions to consider: **<span style="color: rgb(7,100,83);">
 * <span style="color: rgb(7,100,83);">The sap has the sugar and so those the blood. The sap also travels through tubes which in this case is phloem. Also the sap has water and so does the blood.

· How do the sides and the top of the terrarium look? 22/04/09 They look very wet and there is condensation all around. 24/04/09 The ideas were very dry. There was no condensation. · How does the soil look? 22/04/09 It is very wet and damp (moist). Prediction: I think we put way too much water. 24/04/09 It looks very dry, but the sand is wet. · Have any seed sprouted? 22/04/09 No seed have sprouted yet. Prediction: I think if there is no more flood they will sprout. 24/04/09 One clover has sprouted. 27/04/09 The corn a peas have sprouted during the weekend. · What kind of seed sprouted first? What kind of seed sprouted last? 27/04/09 The first one to sprout was the clover seed. It sprouted on the 24/04/09. · What kind of plant grows best in your terrarium? We are not sure but we think it is the corn seed. We are sure the corn seeds grow the best. · How have the living factors of the environment changed? The seeds are growing bigger and taking more minerals. · How have the nonliving factors of the environment changed? The soil has gotten stiffer and it has less minerals. · Which organisms found your terrarium a favorable environment? Why do you think so? The corn seeds found our terrarium good for growing. · How would you recommend planting seeds in a terrarium? How much soil should be on top of the seed? Do different types of seeds require different planting techniques? I would recommend to not put to much water or to little water. There should be about a centimeter of soil on top of the seed. Yes, but the plants in our terrarium - I think- all need the same technique. · How is the environment in your terrarium different than the more common environment for corn, barley, clover, radishes, and peas? 29/04/09 The space is way different between our terrarium and the natural plants environment. Also there is maybe a different quality of soil so that may affect the growth of the plants. · If you were going to set up a terrarium again, what would you do differently and why? I would put more soil for each plants and give a same number of water more frequently. · What factors might affect the growth of the plants in your terrarium if you repeated the investigation during a different season? In a different room in the school? In a different part of the country? The temperature would certainly affect the growth of our plants. and the light that is on the plant. Each country has a different type of soil so that may affect the way our plants grows. **<span style="color: rgb(7, 100, 83);">Brine Shrimp Hatching ** <span style="color: rgb(7, 100, 83);"> 1. The problem: We wanted to find out... We wanted to find out the salinity in which Brine Shrimp and if the salinity affected the shrimp. We wanted to see if the shrimp could continue to feed the migratory birds. 2. What we did: We put labels that said 1 spoon of salt, 2 spoons of salt, 3 spoons of salt etc... then we added water and the different amount of salt in each tub. Finally we added the Brine shrimp eggs. We used some different types of water mixed. 3. After 24 hours we noticed.... <span style="color: rgb(7,100,83);">We noticed that the Brine shrimps have hatched in the tub that has 1 spoon of salt and 2 spoons of salt. They are very small and move with small quick movements. 4. After 48 hours we noticed... We noticed that in the tub with 0 spoon of salt none of the shrimp hatched. In the tub with 1 spoon of salt I noticed that none hatched in there. In the 2 spoon of salt and 3 spoons of salt I noticed that shrimps hatched in both cups. In cup 0, 1 and 2 some of the eggs are going to the bottom. 5. I predict... I predict that the Brine shrimps will die in cup one and that the shrimps in cup zero will never hatch. I think that the cup 2 and 3 will be successful. After 60 hours we noticed... I noticed that my predictions were right. The cup 0 and 1 did die and the cup 2 and 3 are still alive although the cup 2 is loosing shrimp due to the loss of salt. Cellular Respiration

1. People eat food because food because the cells in our body need sugar and the sugar is included in the food we eat. 2. Cells get energy from the food by taking only the sugar and what is needed from the food. 3. Plant cells get the energy they they need by photosynthesis and cellular respiration. 4. **<span style="color: rgb(7,100,83);">

How Much Sugar in our Cereals?

What we did: <span style="font-weight: normal; color: rgb(7,100,83);">We chose 2 cereals that we thought might be HIGH and LOW in sugar content. We chose Cookie Crisps as our high and Frosties as our low. We put two cups of yeast in the bag and added the cereals. We put the low in one bag and the high in the other bag. We added hot water that was between 35-50°. We crunched the cereal and put it in the hot water bath. Now we are waiting for the answer. ** <span style="font-size: 20px; color: rgb(7,100,83); line-height: 21px;">


 * Food Tested || <span style="color: rgb(0,128,128);">Amount of CO2 in 10 minutes ||= <span style="color: rgb(0,128,128);">Amount of CO2 in 20 minutes. ||
 * = <span style="color: rgb(0,128,128);">Cookie Crisps ||= <span style="color: rgb(0,128,128);">150 ml ||= <span style="color: rgb(0,128,128);">150 ml ||
 * = <span style="color: rgb(0,128,128);">Frosties ||= <span style="color: rgb(0,128,128);">100 ml ||= <span style="color: rgb(0,128,128);">50 ml ||
 * = <span style="color: rgb(0,128,128);">Koko Crunch ||= <span style="color: rgb(0,128,128);">100 ml ||= <span style="color: rgb(0,128,128);">200 ml ||
 * = <span style="color: rgb(0,128,128);">Corn Flakes ||= <span style="color: rgb(0,128,128);">0 ml ||= <span style="color: rgb(0,128,128);">0 ml ||
 * = <span style="color: rgb(0,128,128);">Captain Crunch ||= <span style="color: rgb(0,128,128);">50 ml ||= <span style="color: rgb(0,128,128);">230 ml ||
 * = <span style="color: rgb(0,128,128);">Choco Bits ||= <span style="color: rgb(0,128,128);">100 ml ||= <span style="color: rgb(0,128,128);">0 ml ||
 * = <span style="color: rgb(0,128,128);">Corn Flakes ||= <span style="color: rgb(0,128,128);">50 ml ||= <span style="color: rgb(0,128,128);">100 ml ||
 * = <span style="color: rgb(0,128,128);">Coko Crunch ||= <span style="color: rgb(0,128,128);">150 ml ||= <span style="color: rgb(0,128,128);">150 ml ||
 * = <span style="color: rgb(0,128,128);">Cheerios ||= <span style="color: rgb(0,128,128);">50 ml ||= <span style="color: rgb(0,128,128);">50 ml ||
 * = <span style="color: rgb(0,128,128);">Sugar (Control) ||= <span style="color: rgb(0,128,128);">50 ml ||= <span style="color: rgb(0,128,128);">50 ml ||


 * <span style="color: rgb(7, 100, 83);">Conclusion:

We found out that the HIGH bag had more CO2 in 10 minutes and in 20 minutes than the LOW bag. Cptain Crunch had the most for the 20 minutes test and Cookie Crisps/Koko Crunch had the most for the 10 minutes one. The variables we changed was the time and the cereal. In our control we only had sugar.

Letter to Doctor Bryans:

Dear Dr. Bryans,

Due to your request of the answer of your fascinating question //In which salinity do the Brine shrimps survive?// I have - with my team of scientist - led an experiment to follow the path to our answer. Our team of scientists consist of Dr. Banbury, Dr.Paris, my co- assistant Dr. Meisburger and me Dr. Kleitman. We all have a scientist degree from Harvard school. We found out in our fascinating adventure that Brine shrimps.

<span style="color: rgb(0, 0, 0);">  **How can we find out if the eggs that have not hatched in the cups are still viable? (Alive or able to grow)

Our Plan:

1. We have decided that we should put 1 cup with 4 spoons, 1 with 5 spoons, 1 with 6 spoons and 1 with 7 spoons. 2. We will observe if more of the shrimps hatch and compare the numbers. 3. We will record our answers in our journals. 4. We will check our answers again and compare with other groups.

After 48 hours...

None of the cups that we tested had shrimps that hatched. The 0 spoons had none as before, the 5 spoons does not have anything but maybe later some may hatch. In the 6 spoons 7 spoons and 8 spoons nothing was alive. I think there is way too much salt. I predict none of the eggs will hatch in these cups.

As I said in the first question none of the eggs hatched.

If the Brine shrimps are stronger then maybe if you postpone the hatching they will grow stronger and when they come out they maybe can survive. Another thing could be that it dose not make a difference and they die whether the hatching is postponed or not.