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
PDF file

The activity is delivered as a zip file. After you checkout, you will be sent an email with the link to download it.

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GM decision

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Short description Following a EU rule change, the growing of GM crops across Europe will increase in many countries. It...

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3 Parents

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Short description The first baby with DNA from three parents has just been born in Mexico. The mother carries the...

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