How does a fossil form?
Rocks, fossils and soil
Year 3 · Lower Key Stage 2 · S3-ROCKS — Compare rocks; how fossils form; soils
Draft — awaiting teacher review
I
Concept Anchor
Some rocks let water soak in; others do not. Some fossils form when remains are buried. Over a very long time, minerals can replace the remains. Soil is made of tiny bits of rock and dead plants and animals.
Worked example
Why are roofs made of slate?
- 1.A roof must keep rain out.
- 2.Slate does not let water soak in.
- 3.So slate is a good roof.
II
Guided Check
Name one thing soil is made from.
III
Independent Diagnostic Practice
Which rock lets water soak into it?
What is soil made from?