Experimental Design

You want to figure out which brand of microwave popcorn pops the most kernels so you can get the most value for your money. You test different brands of popcorn to see which bag pops the most popcorn kernels. What is the dependent variable?

• Time it takes popcorn to pop

• Number of kernels popped

• Brand of popcorn bag

• Cost of the popcorn

Tags

NGSS.MS-ETS1-3

You want to figure out which brand of microwave popcorn pops the most kernels so you can get the most value for your money. You test different brands of popcorn to see which bag pops the most popcorn kernels. What is the independent variable?

• Time it takes popcorn to pop

• Number of kernels popped

• Brand of popcorn bag

• Cost of the popcorn

Tags

NGSS.MS-ETS1-3

You want to see which type of fertilizer helps plants grow fastest, so you add a different brand of fertilizer to each plant and see how tall they grow. What is the dependent variable?

• Type of plant

• Type of fertilizer given to the plant

• Plant height (cm)

• Time it take plants to grow

Tags

NGSS.MS-LS1-5

You want to see which type of fertilizer helps plants grow fastest, so you add a different brand of fertilizer to each plant and see how tall they grow. What is the independent variable?

• Type of plant

• Type of fertilizer given to the plant

• Plant height (cm)

• Time it take plants to grow

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

You're interested in how rising sea temperatures impact algae life, so you design an experiment that measures the number of algae in a sample of water taken from a specific ocean site under varying temperatures. What is the dependent variable?

• Name of Ocean

• Ocean temperature (℃)

• Amount of water collected

• The number of algae in the sample

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

You're interested in how rising sea temperatures impact algae life, so you design an experiment that measures the number of algae in a sample of water taken from a specific ocean site under varying temperatures. What is the independent variable?

• Name of Ocean

• Ocean temperature (℃)

• Amount of water collected

• The number of algae in the sample

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4