This quiz has a leafy theme. Can you get the high score, or will it leave you heartbroken?

#1. During the day, plants take in carbon dioxide and release oxygen, but what do they do at night?

Plants need oxygen to keep their cells alive. At night, plants can’t produce any oxygen, so they absorb it from the air.

#2. What colour of light won’t feed plants?

The chemical chlorophyll absorbs energy from light, and plants use this energy to make their own food. But chlorophyll doesn’t absorb green light, which is why leaves are typically green!

#3. What word is used to describe a tree that loses its leaves every year?

Deciduous trees lose their leaves every year.

#4. In 2019, scientists made the thinnest gold foil ever, but how thin was it?

Scientists at the University of Leeds made self-supporting gold sheets that were only 2 atoms thick!

#5. Who was the first person to leave their spacecraft while still in space?

Alexei Leonov was the first person to leave their spacecraft while in space, completing the first spacewalk in 1965.

Was I right?


Congratulations! You are a real science whiz!

Oh dear! Better brush up before the next quiz!


If you’re after more fun science for kids, subscribe to Double Helix magazine!


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