Science 8 SOL Review

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. An example is water (H₂O).

Front

Where are metals located on the periodic table?

Back

Metals are located on the left side of the periodic table.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat. An example is fireworks.

Front

What type of bond is formed when a nonmetal bonds with a nonmetal?

Back

A covalent bond is formed when a nonmetal bonds with another nonmetal.

Front

Which of the following is NOT a mechanical wave?

Back

Light waves are not mechanical waves; they can travel through a vacuum.

Front

What is the definition of a mechanical wave?

Back

A mechanical wave is a wave that requires a medium (solid, liquid, or gas) to travel through.

Front

What is the difference between an ionic bond and a covalent bond?

Back

An ionic bond is formed when electrons are transferred from one atom to another, while a covalent bond is formed when atoms share electrons.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.