NGSS.3-5-ETS1-3

An experiment is performed 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, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

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NGSS.3-5-ETS1-3

How many variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible

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NGSS.3-5-ETS1-3

An experiment is performed 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, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.3-5-ETS1-3

What would make an experiment valid (true)?

• It includes your opinion
• Is uses objects
• It is based on evidence
• It proves your predictions are correct

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NGSS.3-5-ETS1-3

What are variables?

• an educated guess

• things you notice around you

• things you change during an experiment

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NGSS.3-5-ETS1-3

Jane is investigating to find out if bean plants grow taller in ordinary topsoil or special potting soil over a three week period. She sets up her investigation with 10 bean plants of equal size in each type of soil. What should Jane do each day to make sure she gets valid results?

• Water only the plants in special potting soil.

• Calculate the average plant height for each soil type.

• Move the plants in ordinary topsoil to different locations.

• Use a special fertilizer if the plants don't seem to be growing well.

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NGSS.3-5-ETS1-3

The _______________ during an experiment is what changes or is different.

• hypothesis

• conclusion

• variable

• conclusion

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NGSS.3-5-ETS1-3

The ONE thing you change in an experiment.

• constant variable

• controlled variable

• dependent variable

• independent variable

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NGSS.3-5-ETS1-3

Which of these is a factor in an experiment that may change, but is controlled by the scientist?

• model

• investigation

• variable

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NGSS.3-5-ETS1-3

Scott grew four basil plants by putting them in a mixture of water and fertilizer. He wanted to find out if growing the plants this way could make them grow taller than plants that grow in the ground. How should Scott set up a control group for his experiment?

• He should grow four basil plants in soil.

• He should grow four tomato plants in water and fertilizer.

• He should use different amounts of fertilizer for each plant.

• He should grow some plants in warm water and some in cold water.

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NGSS.3-5-ETS1-3