Review: Units 1-3

How would you describe this statement?

The donut has red, white, and pink sprinkles.

• Qualitative Observation

• Quantitative Observation

• Inference

Which observation is quantitative?

• It looks red.

• It is wet.

• It is smooth.

• It is 5 cm long.

The variable we change in an experiment.

• Dependent

• Independent

• Constant

The variables that stay the same for both groups.

• Constant

• Dependent

• Independent

The variable that we measure.

• Independent

• Dependent

• Constant

Does the picture represent an element, compound, or mixture?

• element

• compound

• mixture

Which state of mater has a definite shape and a definite volume?

• liquid

• gas

• solid

Which state of matter has the highest kinetic energy?

• solid

• liquid

• gas

Check all of the segments where a phase change is occurring.

• AB

• BC

• CD

• DE

• EF

When a car rusts, what type of change is occurring?

• physical change

• chemical change