Worksheet: Fossils

In this worksheet, we will practice on developing our understanding of fossils and of how they form.


What is a fossil?

Fossil trilobite imprint in the sediment-72 ppi
  • AFossils are animals that are extinct.
  • BFossils are the remains of once living animals or plants.
  • CFossils are a type of shell.
  • DFossils are a type of insect.


The image below shows animals whose species have died out. What name is given to animals that no longer exist?

  • AExtinct
  • BPrehistoric
  • CFossils
  • DRare


The photograph shows stromatolite fossils found in rocks in Western Australia. These fossils are believed to be the oldest known fossils ever found.

They were formed by ancient blue-green algae and are estimated to be about 3.5 billion years old.

Stromatolite fossils

What do these fossils tell us about life on Earth?

Hint: Algae are aquatic plants (they live in water).

  • AThere was life in Earth’s oceans 3.5 billion years ago.
  • BDinosaurs lived on Earth 3.5 billion years ago.
  • CAnimals lived on Earth 3.5 billion years ago.


What is amber?

North sea amber-72 ppi
  • AFossilized leaves
  • BFossilized dinosaur eggs
  • CFossilized tree sap
  • DFossilized insects


What does a paleontologist do?

African paleontologist-72 ppi
  • AA paleontologist studies humans and their customs, beliefs, and relationships.
  • BA paleontologist studies the fossilized remains of plants and animals.
  • CA paleontologist studies the solar system (the Sun, Moon, stars, and planets).
  • DA paleontologist studies the man-made objects that people who lived long ago left behind.


What name is given to a scientist who studies fossils?

  • ABiologist
  • BArchaeologist
  • CBotanist
  • DPaleontologist

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