Plant Growth Experiment: Investigating Water's Impact on Development

In this video, Mr. Conan and Jacob conduct a plant experiment to understand the effects of water on plant growth. They discuss the importance of keeping variables controlled to ensure a fair test. The experiment focuses on independent, dependent, and controlled variables. After spring break, they observe the results, confirming that the amount of water, the independent variable, affects plant growth, the dependent variable. The video concludes with a recap of the experiment's key concepts.

What was the main purpose of the experiment with the two plants?

• To test the effect of music on plant growth

• To test the effect of sunlight on plant growth

• To test the effect of water on plant growth

• To test the effect of soil type on plant growth

Why is it important to change only one variable in an experiment?

• To save time and resources

• To test multiple hypotheses at once

• To ensure the results are due to the variable being tested

• To make the experiment more interesting

What is an independent variable in an experiment?

• The variable that is measured

• The variable that is ignored

• The variable that is changed to test its effect

• The variable that is kept constant

What are controlled variables?

• Variables that are changed during the experiment

• Variables that are measured during the experiment

• Variables that are kept the same to ensure a fair test

• Variables that are ignored during the experiment

What was observed about the plant that received more water?

• It grew smaller than the other plant

• It grew larger than the other plant

• It had no change in size

• It changed color

How can we be sure that water was the factor affecting plant growth?

• By changing the soil type

• By playing music for the plants

• By keeping all other variables constant

• By changing the location of the plants

What is a dependent variable in an experiment?

• The variable that is ignored

• The variable that is measured

• The variable that is kept constant

• The variable that is changed to test its effect

In the plant experiment, what was the dependent variable?

• The type of music played

• The size of the plants

• The type of soil

• The amount of sunlight

What should be done to ensure a fair test in an experiment?

• Keep all variables the same

• Change multiple variables

• Change one independent variable and keep others constant

• Ignore the results

What is the relationship between the independent and dependent variables?

• The independent variable depends on the dependent variable

• They are both kept constant

• They are unrelated

• The dependent variable depends on the independent variable