A farmer applied different brands of fertilizer to his corn crops to see which one would make his plants grow taller. What is the independent variable (IV)?

A farmer applied different brands of fertilizer to his corn crops to see which one would make his plants grow taller. What is the dependent variable (DV)?

Jeff used different types of weed killer on his lawn to see which brand would kill the most weeds. What is the independent variable (IV)?

Jeff used different types of weed killer on his lawn to see which brand would kill the most weeds. What is the dependent variable (DV)?

Wanda wanted to choose a new brand of chips to sell in the school cafeteria. She ordered 3 brands of chips and decided to select the brand students bought most during a two week period. What is the independent variable (IV)?

Wanda wanted to sell a new brand of chips in the school cafeteria. She ordered 3 brands of chips and decided to keep the brand students bought most during a two week period. What is the dependent variable (DV)?

A scientist wanted to learn which color of flower attracted more bees. She grew different colors of the same flower in the garden and counted how many bees visited each color of flower. What is the independent variable (IV)?

A scientist wanted to learn which color of flower attracted more bees. She grew different colors of the same flower in the garden and counted how many bees visited each color of flower. What is the dependent variable (DV)?

The independent variable (IV) is the one scientists change.

The control is something that does not change in an experiment.

The dependent variable is what the scientist measures or counts when they collect data.

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