Properties of rocks

How many different types of rocks are there?

• 3

• 4

• 5

What are sedimentary rocks made from?

• Small pieces of sand, clay and shells

• Water and clay

• Magma

What does permeable mean?

• Water will not go through the rock

• Water will go through the rock

• Water will go around the rock

What does impermeable mean?

• Water will not go through the rock

• Water will go through the rock

• Water will go around the rock

How are igneous rocks formed?

• When there is hot and heavy pressure

• Small pieces of sand, clay and shells pressed together

• When magma cools and hardens

What does durable mean?

• They are more resistant to weathering

• They are less resistant to weathering

• They are flexible

What is an example of a rock that is durable?

• Granite

• Brick

• Marble

Where does lava come from?

• A volcano

• The sea

• A rock

What does density mean?

• How bulky the rock is

• How heavy the rock is

• How hard the rock is

How can you check for density in rocks?

• How hard or soft the rock is

• Buoyancy (whether they float in water)

• How flexible the rock is