Properties of Matter (TCI based)

Front

What determines whether a substance will float or sink in water?

Back

A substance will float if it is less dense than water and sink if it is more dense than water.

Front

What is the method called when a geologist measures the volume of a rock using water?

Back

Water displacement.

Front

What will you observe if two liquids are insoluble?

Back

You will see two layers.

Front

What is steel primarily made of?

Back

Iron.

Front

Why do helium balloons rise in the air?

Back

Helium is less dense than air.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density decreases as the substance expands.

Front

What is an alloy?

Back

An alloy is a mixture of two or more elements, where at least one is a metal.

Front

What is the principle of buoyancy?

Back

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in it.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.