Spring 2 - Science - Rocks and Fossils

What is soil made from?

• Water

• Organic Matter

• Minerals (from rock)

• Air

Which statement is true about rocks?

• All rocks are heavy.

• All rocks are grey.

• Some rocks can float.

• No rocks are easy to break.

Fossils are...

• Groups of soil.

• The skeleton left behind when an animal has died.

• Remains or traces of animals or plants that were once alive, that have turned into rock.

What is the least amount of time a fossil can take to form?

• 2 weeks

• 10 years

• 100 years

• 10,000 years.

In the last stage of fossilisation...

• The soft parts of the body rot away, leaving the hard parts behind.

• The mud and layers of rock erode (wear) away.

• The animal dies.

• The skeleton is buried by mud and other small pieces of rock.

In the first stage of fossilisation...

• Layers of mud build up and push down on the skeleton.

• The soft parts of the body rot away, leaving the hard parts behind.

• The skeleton is buried by mud and other small pieces of rock.

• The animal dies.

What is organic matter?

• Living and decaying animals and plants.

• Parts of rock.

• Water.

• A fossil.