lesson

Fossils are clues, not a complete film

1 · Learn

Fossils are preserved remains or traces of past life. Their structures and the rocks in which they occur help scientists investigate organisms and environments from long ago. The record is incomplete: many organisms never formed fossils or their fossils have not survived.

A fossil shell can support an inference that a shelled organism lived there in the past. It does not by itself show every detail of the organism's colour, behaviour or surroundings.

Preserved remain or traceCompare structuresIncomplete recordSeparate observation and inference
Key words and supplied examples.

2 · Worked example

I observe a shell-shaped fossil in rock. I infer a past organism with that structure, but I do not invent its exact colour from the shape alone.

3 · Your turn

Does the absence of a fossil prove that no organism ever lived in a place?

Check your answer

No. Fossil formation, survival and discovery are incomplete.

4 · Apply your learning

Annotate a prepared fossil photograph with two observations and one clearly labelled inference.

Adult guidance and safety

Use verified photographs or safe prepared samples. No cliff climbing, digging or fossil collecting without qualified supervision.

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Check a calculation · Year 5 onward

Use this only when your teacher or adult allows a calculator for the task. Show your thinking first. It does not replace mental or written arithmetic and does not mark your lesson answer.

My observation notebook

With an adult, look at a safe real example or a checked photograph. Name the example and say which you used. Record what you actually notice. Do not taste plants or materials, approach unknown animals or invent missing observations.

Ask your teacher for support with the method and recording. A prediction is what you think might happen; an observation is what you actually see, hear or feel safely.

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