2023 Scientific Method

If I floss more, I will have fewer cavities. What is the independent variable?

• Number of cavities

• Amount of flossing

• Type of floss used

• Amount of brushing

If I apply a higher factor sunscreen, I will burn less. What is the dependent variable?

• Severity of sunburn

• Factor of sunscreen

• Time spent in the sun

• Weather conditions

The dependent variable is:

• The variable that you change in an investigation.

• The variable that you measure in an investigation.

• A variable that you keep the same in an investigation.

Tags

NGSS.MS-PS3-4

The independent variable is:

• The variable that you change in an investigation

• The variable that you measure in an investigation

• A variable that you keep the same in an investigation

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

What is the purpose of controlled variables?

• To control what happens in the investigation.

• To make the investigation valid.

• To make the investigation reliable.

A series of steps used by scientists to solve a problem or answer a question is called?

• Hypothesis

• Scientific method

• Data collection

• Experiment

Tags

NGSS.MS-PS1-2

To make observations, you use your _______.

• Feet

• Experience

• Senses

• Smile

Tags

NGSS.MS-LS1-8

Performing a test or experiment allows you to test your ___________.

• Conclusions

• Hypothesis

• Data

• Question

Tags

NGSS.MS-PS2-2

What is the first step in the scientific method?

• Data

• Conclusion

• No Horseplay

• Observe a problem

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-PS1-2

NGSS.MS-ETS1-4