SIE 4 Review ASAS 1 24/25

Choose two correct answers.

• Bones can move by themselves

• Some of our muscles are attached to our bones.

• Our muscles pull on our bones to make them move

• The muscles can push on the bones

The largest group of animals that he an exoskeleton is ....

the diseases spread rapidly, affecting a lot of people is known as

Some animals change colours over time to help them ….

It packed very closely together

have a fixed position

particles vibrate

These are the particles of ....

Substances are made up of ….

When liquid is cooled, its particles lose heat.

They start to move slower and closer together.

When the particles lose enough heat, they settle into fixed positions.

The name of process is called ….

In a … change, no new substance is formed.

One or more properties of the substance may change.

Iron rusting is the example of ... reaction.

This animal doesn’t have a backbone which known as …