Variables, question, and Hypothesis

What is an independant variable?

• a variable that stays the same in an experiment

• the result of an experiment

• a variable that is changed by the scientist

• a variable that changes because of the experiment

Tags

NGSS.MS-PS2-2

What is the control group in an experiment?

• a variable that changes due to the independent variable

• a variable that does not change during an experiment

• a single variable that is changed

• the result of the experiment

What is the dependent variable?

• a variable that the scientist changes

• a variable that does not change during an experiment

• the result of the experiment

• a variable that never changes

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the IV?

• Student ages

• The puzzle

• The time it takes to complete

• None of the above

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the DV?

• Student ages

• The puzzle

• Time to finish the puzzle

• None of the above

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the control?

• Student ages

• The puzzle

• Time it takes to finish the puzzle

• None of the above

• Hours is the dependent variable

• Number of E. Coli Bacteria is the dependent variable

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

• Hours is the independent variable

• Number of E. Coli Bacteria is the independent variable

You set up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the independent variable?

• type of plant

• plant growth

• the liquid the plant is given

• the amount of sunlight

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

You set up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

• type of plant

• plant growth

• the liquid the plant is given

• the amount of sunlight

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1