Scientific Method

Why do scientists use the scientific method?

• To make sure they get credit for their discoveries.
• To make sure their results are valid and can be performed by other scientists.
• So that other scientist don't get mad at them

Tags

NGSS.HS-PS1-2

What step does every scientific experiment begin with?

• hypothesis
• observations

• procedures
• conclusion

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

• conclusion
• procedures
• materials
• hypothesis

What is a hypothesis?

• an educated guess stating what you believe will be the result of your experiement
• a random guess
• a statement of the outcome of your experiment
• step by step directions for your experiment

The independent variable is the ONE thing you _____.

• change on purpose
• control or keep constant
• measure

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect 

• independent variable
• dependent variable
• control variable

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more
• To know what is causing the changes. This helps us understand cause and effect.
• It is what has always been done

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

• dependent variable
• independent variable
• data
• control group

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

• data
• theory
• hypothesis
• fact

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-5