Unit 1 Review Matter and Its Interactions

The _____ variable is that we change the number of washers.

• dependent

• independent

The ______ variable is we wait and see the change in temperature.

• dependent

• independent

Atoms have the same number of protons and ______

• neutrons

• electrons

Electrons have a _____ charge

How many protons does nitrogen have?

Which phase is substance A?

• solid

• liquid

• gas

Which phase is substance B?

• solid

• liquid

• gas

Which phase is substance C?

• solid

• liquid

• gas

Which state of matter has a definite volume? (Hint: We can measure how much space they take up)

• solid and gas

• solid only

• solid and liquid

Which particles can be found in the orbital shell?

• protons

• electrons

• neutrons