2.1: Introducing Elements(II)

How we use a material depends on its properties.

• True

• False

Material properties are what the material is like, and how it behaves.

• True

• False

Every material and everything in the Universe is made from one or more elements.

• True

• False

A substance that cannot be split into anything simpler.

• A compound

• An element

• A rock

There are ................. different types of elements found naturally on Earth.

• 92

• 25

• 118

There are ................. elements made by scientists.

• 92

• 25

• 118

Elements aren't made up of one type of atom.

• True

• False

Different elements have .........................properties.

• different

• similar

The elements on the .......................... of the stepped line are metals.

• right

• left

The elements on the .......................... of the stepped line are nonmetals.

• right

• left