Scientific Method Review

What step does every scientific experiment begin with?

• Hypothesis

• Observation/Question

• Procedures

• Conclusion

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

• Dependent Variable

• Control Group

• Data

• Independent Variable

Tags

NGSS.MS-PS2-2

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 liquid

• The type of music

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

What is the summary at the end of an experiment that explains the results?

• Conclusion

• Procedure

• Analyzing Data

• Materials

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

• Type of exercise

• Heart rate

• Amount of exercise

• Time of day the exercise occurs

Tags

NGSS.MS-LS2-1

Observations made during an experiment are called:

• Data

• Problems

• Questions

• Conclusions

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?

• Water, apple juice, milk

• Plant growth

• Type of plant, amount of music, and sunlight

• Type of music

Which is true about a hypothesis?

• It summarizes the results of the experiment.

• It is a prediction about how the independent and dependent variables are related.

• It is the final answer to the question.

• It is a question.

All hypotheses are accepted/supported by data.

• TRUE

• FALSE

Tags

NGSS.HS-LS3-2

A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7. Which is the best conclusion for this experiment?

• Acid has no effect on the health of this type of plant.

• High acidity (pH 0-2) is helpful to this type of plant.

• Low acidity (pH 3-6) is harmful to this type of plant.

• High acidity (pH 0-2) is harmful to this type of plant.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

NGSS.MS-LS2-1