Speedy sperm

Brazilian scientists discovered that coffee makes sperm swim faster, and speculated that caffeine could be used in new infertility treatments. Other research showed that the sperm of cannabis smokers and overweight men is often of poor quality.

In this activity pupils draw cartoons to show the results of this research. They also plan an experiment to confirm that caffeine does make sperm swim faster.

Learning objective

Understand the process of fertilisation in human reproduction

Blueprint curriculum link

Unit: Reproduction
Concept: Sexual & asexual: Reproduction involves mixing genetic material from two parents, or copying cells from one parent
Skill: Variables: Choose variables to answer a scientific question
Learning stage: Analyse

Activity contents

Teachers guide
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One Father Christmas

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Short description This seasonal activity asks about Santa's ancestors: are all the modern ones descended from one ancient ‘Father’ Christmas? Students first...

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Monster crabs

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Short description Red king crabs arrived in Europe. Huge, and with no natural predators, they competed with cod for food...

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To catch a bomber

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Short description Science has a big role to play in helping to investigate terrorist attacks. This activity introduces a forensic...

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Speedy sperm

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Speedy sperm

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