Semester 1 Diagnostic

Which variable does the investigator/scientist change?

• Dependent

• Control

• Independent

• Outcome

Scientific __________ predict WHAT HAPPENS in the natural world

• Law

• Theory

SELECT ALL THAT APPLY:

Which variable does your data and results come from?

• Dependent

• Control

• Independent

• Outcome

Ahmya wants to know if fish swim faster to Broadway music or the Blues. She has two fish tanks, with the same kind and number of fish in each. She plays Broadway music for one hour each day for one tank and the Blues for one hour each day for the other. She puts her findings in a scientific journal.

Name two control variables in this experiment.

• Length of music exposure

• Music type

• Type of fish

• How fast the fish swim

Scientific __________ predict WHY something happens in the natural world

• Law

• Theory

What is the independent variable on this graph?

• Estimated Population

• Population

• Year

• The independent variable is Day. The dependent variable is Temperature

• The independent variable is Temperature. The dependent variable is Day

What happened in Alex's experiment?

• As temperature increased, the amount of sugar that can dissolve increased.

• As temperature decreased, the amount of sugar that can dissolve increased.

• As temperature increased, the amount of sugar that can dissolve decreased.

• The same amount of sugar was able to dissolve at every temperature

The state of matter in which a substance has a definite volume but no definite shape.

• gas
• liquid
• solid
• matter

A combination of two or more different substances in which the substances keep their identities. 

• reaction
• mixture
• solution
• atom