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      What fossils can tell us about the past

      Lesson details

      Learning outcome

      I can describe what fossils can tell us about things that lived in the past.

      Key learning points

      1. Fossils are our best form of evidence about Earth's history, including the history of life
      2. Fossils can give us clues about living things that inhabited the Earth millions of years ago
      3. By studying the fossil record, we can tell how long life has existed on Earth
      4. Palaeontologists use the fossils they find to propose theories about living things from the past
      5. Theories about prehistoric living things change over time as we gather more evidence

      Keywords

      • Evidence - Evidence is information that helps us to prove if something is true or not true.

      • Fossil record - The fossil record is the collective name for all of the fossil evidence gathered by scientists.

      • Fossil - A fossil is the remains or imprint of living things that are sometimes preserved in rock.

      • Theory - A theory is a carefully thought-out explanation for something about our world that is based on learning from scientific enquiry.

      • Palaeontologist - Palaeontologists study fossils as a guide to the history of life on Earth.

      Common misconception

      Pupils may have a limited view of what constitutes a fossil, such as only things that resemble skeletons or ammonite shells, and not recognise things like coprolites or plant imprints as fossils too.

      Use the range of examples used in the lesson to make it clear to pupils that there are a wide range of different types of fossil and different types of organisms that become fossils.

      Teacher tip

      This lesson could be brought to life by giving pupils some real fossils to explore and perhaps use as alternatives or additions to those pictured for Task B. If there are no fossils currently in the school resources, local secondary schools or universities may have collections that can be borrowed.

      Equipment

      Images in additional materials for Task B.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      What are fossils?

      Correct answer: evidence of living things from millions of years ago
      evidence of different prehistoric rocks
      living things that have died and are decaying

      Q2.
      Many prehistoric animals are now extinct. What does prehistoric mean?

      a time before cameras existed
      a time before history lessons were taught
      Correct answer: a time before humans made written and pictorial records
      any time before today

      Q3.
      What is a theory?

      a guess about something
      Correct answer: an idea based on findings from enquiries
      an idea based on popular opinions
      an idea based on a gut feeling

      Q4.
      Most fossils are found in sedimentary rocks. What are sedimentary rocks?

      Correct answer: rocks that are formed when layers of sediment build up over time
      rocks that are formed inside volcanoes
      rocks that are formed when extreme heat melts other rocks pressing them together

      Q5.
      Complete the sentence. Fossils form…

      rapidly over a few months.
      quickly once an animal or plant has died.
      slowly over decades.
      Correct answer: gradually over millions of years.

      Q6.
      Which parts of living things usually become fossils?

      the soft parts like the skin, organs or flowers
      Correct answer: the hard parts like bones, teeth and shells
      usually the whole living thing is fossilised

      6 Questions

      Q1.
      What do palaeontologists use to gather clues about life on prehistoric Earth?

      weather patterns
      Correct answer: fossils
      photographs of ancient animals
      water samples

      Q2.
      are our best form of evidence about the history of life on Earth.

      Correct Answer: Fossils, fossil

      Q3.
      The collective name for all of the fossil evidence that has been found and the ages of those fossils is called the fossil .

      Correct Answer: record, records

      Q4.
      Palaeontologists make scientific theories using the evidence they gather from fossils. Which of these statements about theories are correct?

      Correct answer: Theories may change over time as we gather more evidence.
      All theories are ideas that are unproven.
      It is impossible to prove that a theory is correct.
      Correct answer: Scientific enquiries can help scientists to make more accurate theories.

      Q5.
      What deductions can palaeontologists make about animals using clues from their fossils?

      Correct answer: approximately how big it was
      Correct answer: whether it ate animals or plants
      what colour it was
      how it moved
      Correct answer: whether it was a vertebrate or an invertebrate

      Q6.
      Which of these cannot be learned by studying the fossil record?

      which organisms were alive at the same time as each other
      how long life has existed on Earth
      when dinosaurs were alive
      Correct answer: how many dinosaurs lived on Earth

      To help you plan your 6 science lesson on: What fossils can tell us about the past, download all teaching resources for free and adapt to suit your pupils' needs...