Elements Compound Mixtures

Question 1

Compound

Answer 1

The periodic table is made up of elements – substances made up of only one type of atom. Remember! Very often two or more of these elements join together and form a new substance. These new substances are called compounds.

Question 2

Mixtures

Answer 2

So far we have looked at elements and compounds. Elements are only made up of one type of atom, whereas compounds have two or more elements chemically combined.
We have learned that mixtures are made up of two or more substances mingled together but not chemically combined. Therefore, mixtures can be made up of elements or compounds but in no definite amounts.
For example:
Air is a mixture of gases in no definite amounts.
A pack of skittles is a mixture of different coloured sweets which varies from bag to bag.
Seawater is a mixture of water and salts.

Question 3

Elements

Answer 3

An element is a substance made up of only one type of atom. There are over 100 different elements. Everything on Earth (all matter) is made from these elements. They can be thought of as being like pieces of Lego.