Natural Sciences Grade 7 Periodic Table

What is an element?

• One type of substance.

• A substance that contains one particle.

• A substance that can be broken down further.

• A pure substance which cannot be broken down any further.

What is an atom?

• The smallest particle of a chemical element that can exist.

• Part of an electron.

• A combination of multiple elements.

• One type of element.

A solid consists of:

• A state of matter that is able to change shape.

• A state of matter that does not retain its shape and density when not confined.

• A state of matter that retains its shape and density when not confined.

• A state of matter that is very dense.

A liquid is:

• A substance that does not change form according to the type of container that it is in.

• A substance that changes form according to the type of container that it is in.

• A hard substance.

• A substance that keeps does not flow according to the force of gravity exerted on it.

Which of the following does not describe a gas?

• Gasses expand freely to fill a specific area.

• Gasses have no defined shape.

• Gasses have a defined volume.

• Gasses expand infinitely.

What is the Periodic Table of Elements?