Testing plant growth By: Colin O.

Dependent Variable

Dependent Variables

• Measure the height of each plant at certain checkpoints.

1. Name your Control Variables (What will stay the same for each of the three cups)?
2. Name the Independent Variable (What is it that is different for each of the three cups)?
3. Name your Dependent Variable (What is it that you are testing & recording data on?)
4. What data are you collecting to serve as Evidence to show how plants grow in organic material versus inorganic planting material?
5. Why is everyone starting with the same three cups? Why do we need to test so many plants?
6. What sprouts first in a seed: the stem or the root?
7. How do you know? How do the pictures below help explain your answer for #6?
8. Why do you think it goes in that order?

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Evidence
​Evidence

• We can record our data using measurements (in cm).
• or roots

Reflection/Synthesis Questions

1. The light and the water are the same for all the plants.

2. The amount of sand that the seed was planted in.

3.The size and appearance of a bean plant.

4. How much the plant grows and maybe the color of it.

5. In case one spills or if someone doesn't take good care of their plant.

6. The root so it can get water.

7. It looks like it is going down into the ground. The pictures look like white roots and go down into the ground.

8.The plant need strong roots for a strong base to grow up for sunlight.

Independent VariableEvidence

• We can record our data using measurements (in cm).
• or roots