24-25 Final Review

Front

What is an element?

Back

An element is a pure substance made of only one type of atom.

Front

What is evidence of a chemical change?

Back

Burning wood, which releases ash and smoke, is evidence of a chemical change.

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What type of wave is a transverse wave?

Back

A transverse wave is a type of wave where the motion of the medium is perpendicular to the direction of the wave.

Front

Which liquid is the least dense?

Back

Lamp oil is the least dense liquid compared to honey, vegetable oil, and water.

Front

What is a chemical reaction?

Back

A chemical reaction is a process where substances combine or break apart to form new substances.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

What are the states of matter?

Back

The states of matter are solid, liquid, gas, and plasma.