Science STAAR Review

Front

What are positively charged particles found in the nucleus of an atom called?

Back

Protons

Front

What is the central region of an atom where its neutrons and protons are located?

Back

Nucleus

Front

What term describes the changes in the Moon's appearance when it increases in size?

Back

Waxing

Front

What is a sign that a chemical reaction has occurred?

Back

Bubbles of gas appear

Front

How do you calculate speed?

Back

Speed = Distance / Time

Front

What is the unit of speed in the metric system?

Back

Meters per second (m/s)

Front

What are the three main subatomic particles in an atom?

Back

Protons, neutrons, and electrons

Front

What is the charge of neutrons?

Back

Neutrons have no charge (neutral).

Front

What is the charge of electrons?

Back

Electrons are negatively charged.

Front

What is the process called when a solid changes directly to a gas?

Back

Sublimation