How Rocks Are Formed (Page 2 of 2) in pdf

How Rocks Are Formed Page 2

Minerals

Minerals are nonliving materials found in nature. There are more

than 2 000 different minerals on earth. Quartz, talc, halite (rock

salt), magnetite, feldspar and mica are a few common minerals.

All rocks are made from minerals. The soil contains tiny pieces of

minerals broken from rocks.

People use minerals in different ways. Hematite is used to make steel.

Quartz, one of the hardest minerals, is used in making sandpaper and

glass. Diamond is also very hard. Diamonds are used on the cutting

edges of some saws and drills. Talc, a soft mineral, is ground up to

make talcum powder. Some minerals are valuable for their beauty.

Diamonds, gold, and silver are polished and made into beautiful

jewellery.

Cross out the word(s) in each sentence that does not make sense.

Write the correct work on the line.

1. Some rocks are made from minerals. _________________

2. More than 2 000 different soils are on the earth. _________________

3. Quartz is one of the softest minerals. _________________

4. Hematite is used to make talcum powder. _________________

5. Diamonds are used on cutting edges of saws and scissors.

_________________

6. Talcum powder is made from ground up rocks. _________________

7. Talc is used to make sandpaper and glass. _________________

8. Some minerals are made into beautiful baskets. _________________

How Rocks Are Formed Page 2