Question

which are controlled variables jack should have? (mark all that are true) * using same sunflower plants the amount time for growing the number of seeds produced the type of pot and soil the amount of water given to the plants

Explanation:

Controlled variables are kept constant in an experiment to ensure that the results are due to the independent variable being tested. Using the same sunflower plants, keeping the growing - time, type of pot and soil, and amount of water constant helps isolate the variable being tested. The number of seeds produced is a dependent variable, not a controlled variable.

Answer:

• using same sunflower plants
• the amount time for growing
• The type of pot and soil
• the amount of water given to the plants