A series of steps used by scientists to solve a problem or answer a question.

• experimentation

• scientific method

• hypothesis

• testable prediction

Tags

NGSS.MS-PS2-2

A possible explanation to a problem that has not yet been tested.

• data

• fact

• hypothesis

• theory

This variable in an experiment is the one being deliberately changed by the scientist. 

• independent variable

• data

• dependent variable

• control group

Tags

NGSS.MS-PS2-2

 

What step does every scientific experiment begin with?

• hypothesis

• conclusion

• procedures

• observation

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 type of liquid

• The type of music

• The amount of sunlight

Tags

NGSS.MS-LS1-5

The summary at the end of an experiment that explains the results. 

• Conclusion

• Procedures

• Materials

• Responding variable

Tags

NGSS.MS-LS1-5

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• amount of exercise

• type of exercise

• heart rate

• time of day exercise occurs

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, what are the controlled variables?

• type of plant, amount of music, and sunlight

• water, apple juice, milk

• plant growth

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Which is true about hypothesis?

• It determines what will happen, for sure.

• It is an educated guess or possible answer to the question.

• It summarizes the results of the experiment.

• It is the final answer to the question.

ALL hypothesis are accepted.

• TRUE

• FALSE

Tags

NGSS.HS-LS3-2