3.1.2
Fossils
Fossils
Fossils
Fossils are traces of ancient plants and animals that can be found in rock.


Forming fossils
Forming fossils
- Fossils are formed over a long time.
- Fossils were formed when animal bodies or pieces of plants turned to rock or were replaced by rock.


How fossils are made
How fossils are made
- The plant or animal dies.
- The body of the dead plant or animal is covered with sediment.
- The soft part of the body decomposes.
- The shell or bones of the animal are left behind.


How fossils are made 2
How fossils are made 2
- The body is washed away over time.
- This leaves the shape of the plant or animal as a hole inside the rock.
- Different rock fills the hole and is in the shape of the plant or animal.


Where to find fossils
Where to find fossils
- We usually have to dig to find fossils because they are buried in the rock.
- Sometimes fossils are exposed (we can see them) by cliff falls and on the beach where water has eroded the rock.
1Year 3: Plants
2Year 3: Animals (Including Humans)
3Year 3: Rocks
3.1Rocks on Earth
4Year 3: Light
4.1What is Light?
5Year 3: Forces & Magnets
6Year 4: Living Things & Their Habitats
6.1Grouping Animals
6.4Grouping Plants
6.5Classification Keys
7Year 4: Animals, Including Humans
7.1Teeth
7.2Digestion
8Year 4: States of Matter
8.1The 3 States of Matter
8.2The Water Cycle
9Year 4: Sound
9.1How Do I Hear?
9.2Pitch
10Year 4: Electricity
10.1Uses of Electricity
10.2Conductors & Insulators
10.3Making Circuits
Jump to other topics
1Year 3: Plants
2Year 3: Animals (Including Humans)
3Year 3: Rocks
3.1Rocks on Earth
4Year 3: Light
4.1What is Light?
5Year 3: Forces & Magnets
6Year 4: Living Things & Their Habitats
6.1Grouping Animals
6.4Grouping Plants
6.5Classification Keys
7Year 4: Animals, Including Humans
7.1Teeth
7.2Digestion
8Year 4: States of Matter
8.1The 3 States of Matter
8.2The Water Cycle
9Year 4: Sound
9.1How Do I Hear?
9.2Pitch
10Year 4: Electricity
10.1Uses of Electricity
10.2Conductors & Insulators
10.3Making Circuits
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