Science TCAP Review: Conservation of Matter

Front

What is the conservation of matter?

Back

The principle that matter cannot be created or destroyed in a chemical reaction.

Front

How do particles behave in a gas?

Back

Particles in a gas are able to fly around freely.

Front

If 25 grams of sugar dissolves in 150 grams of water, what is the total weight of the solution?

Back

175 grams.

Front

What happens to the mass of clay when it is shaped into different forms?

Back

The mass remains the same regardless of the shape.

Front

What is an example of evidence for conservation of matter?

Back

The weight of a substance remains about the same before and after a chemical reaction.

Front

What does it mean when we say matter cannot be created?

Back

It means that the total amount of matter stays constant in a closed system.

Front

What happens to the particles in a solid?

Back

Particles in a solid are tightly packed together.

Front

What happens to the particles in a liquid?

Back

Particles in a liquid are loosely packed and can slide past each other.

Front

What is an example of a physical change?

Back

Melting ice is a physical change where the state of matter changes but the mass remains the same.

Front

What is an example of a chemical change?

Back

Burning wood is a chemical change where new substances are formed.