Properties of Matter (4th grade)

Front

What are solids?

Back

Solids are materials that have molecules packed together tightly and hardly move. They have a definite shape and volume.

Front

What are liquids?

Back

Liquids are materials that have a definite volume but take the shape of their container. The molecules in liquids are less tightly packed than in solids.

Front

What are gases?

Back

Gases are materials that have no definite shape or volume. The molecules in gases are far apart and move freely.

Front

What is mass?

Back

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

Front

What tool do you use to measure mass?

Back

A triple beam balance is used to measure the mass of an object.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is a property of matter?

Back

A property of matter is a characteristic that can be observed or measured, such as color, shape, size, mass, and volume.

Front

What is volume?

Back

Volume is the amount of space an object occupies. It can be measured in liters or cubic centimeters.

Front

What is a graduated cylinder used for?

Back

A graduated cylinder is used to measure the volume of liquids accurately.

Front

What happens to the molecules in a solid when heated?

Back

When a solid is heated, its molecules gain energy and start to move more, which can cause the solid to melt into a liquid.