Law of Conservation of Matter

Front

What is the Law of Conservation of Matter?

Back

The Law of Conservation of Matter states that matter cannot be created or destroyed in a closed system; it can only change forms.

Front

What happens to the mass of a substance during a physical change, such as melting?

Back

The mass remains the same; it does not gain or lose mass during the change.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved.

Front

Why is it important to balance chemical equations?

Back

Balancing chemical equations ensures that the Law of Conservation of Matter is upheld, showing that mass is conserved during reactions.

Front

What is sedimentation in the context of the rock cycle?

Back

Sedimentation is the process by which particles settle out of a fluid and accumulate, forming sedimentary rocks.

Front

What is compaction in the rock cycle?

Back

Compaction is the process where sediments are pressed together under pressure, reducing their volume and forming solid rock.

Front

What is cementation in the rock cycle?

Back

Cementation is the process where dissolved minerals precipitate from water and fill the spaces between sediment particles, binding them together.

Front

What does it mean for mass to be conserved in a chemical reaction?

Back

It means that the total mass of the reactants equals the total mass of the products; no mass is lost or gained.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change; the ice changes from solid to liquid but retains its mass.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change; it transforms into ash, smoke, and gases, changing its mass.