Physical Science Quarter 2 Review

Front

What kind of chemical reaction gives off energy?

Back

Exothermic

Front

What happens during a chemical reaction to the atoms?

Back

Atoms are not created or destroyed, only rearranged.

Front

Which of the following is an example of a chemical change?

Back

Gas being burned into the air.

Front

What is conduction?

Back

Transfer of thermal energy through direct contact.

Front

During a chemical reaction, is new matter made?

Back

No, only rearranged.

Front

What is an endothermic reaction?

Back

A chemical reaction that absorbs energy from its surroundings.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is thermal energy?

Back

The total kinetic energy of particles in a substance.