8th Science Fall Semester Exam Review 2024

Front

What happens to warm air in convection?

Back

Warm air rises.

Front

What happens to the mass of the reactants during a chemical reaction?

Back

The mass of the reactants stays the same.

Front

What type of forces are acting on a tree knocked down by strong winds?

Back

Unbalanced forces.

Front

What type of boundary occurs when two tectonic plates slide past each other?

Back

Transform boundary.

Front

What type of forces are acting on a person sitting on a chair?

Back

Balanced forces.

Front

Define convection.

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases).

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move toward each other, often causing one plate to be forced below the other.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, leading to the formation of new crust.

Front

What is an example of an unbalanced force?

Back

A tree falling due to strong winds.