5.PS1.2 Conservation of Matter 5th Grade TNReady #2

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 ice when it melts?

Back

The mass of ice remains the same when it melts into water.

Front

If 200 g of water is frozen, what is the mass of the ice?

Back

The mass of the ice is exactly 200 g.

Front

What is mass?

Back

Mass is the amount of matter in an object, usually measured in grams or kilograms.

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 happens to the mass of a substance during a physical change?

Back

The mass of a substance remains the same during a physical change.

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 an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is the state of matter?

Back

The state of matter refers to the distinct forms that different phases of matter take on, such as solid, liquid, and gas.

Front

What happens to the particles in a substance when it changes state?

Back

The particles in a substance move closer together or further apart depending on whether it is changing from solid to liquid, liquid to gas, etc.