
Fossils lesson 1
Presentation
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Science
•
4th Grade
•
Hard
+3
Standards-aligned
Belinda Cheng
Used 2+ times
FREE Resource
6 Slides • 0 Questions
1
Fossils: Different types of fossils.
What are fossils?
A fossil is a preserved animal or plant which died millions of years ago that humans can't keep track of. Fossils are divided into two groups: body fossils and trace fossils.
2
What is a body fossil?
Body fossils preserves one or more parts of an animal's body. This image shows a picture of a triceratops body fossil.
3
What is a trace fossil?
Trace fossils preserves the remains of how an animal lives. the remains can be footprints and dung or others. This is a trace fossils of a dinosaurs footprints.
4
From hollow to touchable
There are different fossils and two different ways we see it: cast and mold fossils.
5
What is a mold fossil?
A mold fossil is a hollow shape like if you press your finger into a piece of clay the shape of you finger is left. This is a mold fossil of a trilobite.
6
What is a cast fossil?
A cast fossil A cast fossil forms when minerals are deposited in a hollow space inside a mold. this is a cast fossil of a shell when an animal once lived in here.
Fossils: Different types of fossils.
What are fossils?
A fossil is a preserved animal or plant which died millions of years ago that humans can't keep track of. Fossils are divided into two groups: body fossils and trace fossils.
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