8 Science Semester Review

Front

What does the Law of Conservation of Mass state?

Back

The mass in chemical reactions cannot be created nor destroyed, just rearranged.

Front

What is a chemical formula for a mixture?

Back

NaCl + H2O

Front

What does Newton's 3rd Law of motion state?

Back

For every action, there is an equal and opposite reaction.

Front

What is the engine responsible for the movement of Earth's crustal plates?

Back

Convection currents.

Front

What is the measure of how difficult it is to break the surface of a liquid called?

Back

Surface Tension.

Front

What is the definition of cohesion?

Back

The attraction between molecules of the same substance.

Front

What is the definition of adhesion?

Back

The attraction between molecules of different substances.

Front

What is viscosity?

Back

A measure of a fluid's resistance to flow.

Front

What is the formula for calculating density?

Back

Density = Mass/Volume.

Front

What is the definition of a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.