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Broad Topics > Functions and Graphs > Exponential growth and decay

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Weekly Challenge 48: Quorum-sensing

Age 14 to 16 Short Challenge Level:

This problem explores the biology behind Rudolph's glowing red nose.

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Cobalt Decay

Age 16 to 18 Challenge Level:

Investigate the effects of the half-lifes of the isotopes of cobalt on the mass of a mystery lump of the element.

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Drug Stabiliser

Age 16 to 18 Challenge Level:

How does the half-life of a drug affect the build up of medication in the body over time?