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 total mass of a substance when it changes state (e.g., solid to liquid)?

Back

The total mass remains the same when a substance changes state; it is conserved.

Front

If you dissolve sugar in water, what happens to the total mass of the solution?

Back

The total mass of the solution is the sum of the mass of the sugar and the mass of the water.

Front

What is mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in grams or kilograms.

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

Breaking a pencil is an example of a physical change; the pencil's mass remains the same.

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 ice when it melts?

Back

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

Front

What is the relationship between mass and volume in a substance?

Back

Mass and volume are related through density; density is mass per unit volume.

Front

What is an example of matter?

Back

Examples of matter include solids (like ice), liquids (like water), and gases (like air).