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

• scientific method
• recipe
• data collection
• metric system

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

• dependent variable
• independent variable
• data
• control group

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS1-2

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

• conclusion

• procedures

• materials

• controlled variable

Tags

NGSS.MS-LS1-5

Dependent variable is ________________________.

• the scientist controls what to test

• educated guess

• ask a question

• what is being measured

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS1-2

What is the main purpose of an experiment?

• Actively producing data and conducting comparisons to evaluate a question or hypothesis.

• To observe changes in nature

• Learning about how people live their lives

• Discovering new medical techniques and medications.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

The more times that an experiment is repeated and the same results obtained, the more likely the results are _________. 

• better
• observed
• valid
• used

Tags

NGSS.MS-LS1-5

The variable that affects the dependent variable is called the _________ variable.

• dependent
• optional
• independent
• scientific

Tags

NGSS.MS-PS3-5

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

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.MS-LS1-5