Compounds, Mixtures and Solutions What you may already know:
zz z z
z z All matter is made up of small particles.
Elements are the basic materials that all other materials are made from.
Some substances dissolve in water while others do not.
What you will learn in this chapter: zz
To describe the three classes of matter: elements, compounds and mixtures.
zz zz
zz
zz zz
To define pure and impure substances.
To investigate the difference between elements, compounds and mixtures.
That elements combine in many ways to produce compounds that make up all living and non-living things. To define solutions and give examples of solutions. To describe various methods of separating mixtures.
zz zz
How does nail varnish remover work?
If chlorine is a
poisonous gas, why can we put sodium chloride (table salt) on our food?
zz
Where does sugar go in a hot cup of tea?
Can you crack this code?
The first letter of each image spells out a key word that you will come across in this chapter. Use the hints provided if you need to, or revisit the Puzzler after you finish this chapter.
1. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2.
118.71 50
a b Sn
Metal used to make aircraft Metal with the chemical symbol Sn
