British Science Week is an annual event celebrating science, technology, engineering and maths. It's always a wonderfully inspirational 10 days full of smiling faces and great science.
This year, the theme is Curiosity: What's your question?
There are some brilliant packs full of activity ideas on the British Science Week website, but I thought I'd share some activities on Science Sparks that also fit the theme.
Science Questions and Activities for Kids
Nature Questions
How do penguins stay warm?
Find out how penguins survive in extreme cold with a simple science activity using ice and lard!
How tall is a tree?
Use a simple maths trick to find the height of a tree!
How can you tell the time using the sun?
You'll need a sunny day for this one, but a DIY sundial is easy to make with just a few simple materials.
How can a bird fly?
Learn about the hollow bones of a bird and the clever adaptations that help them have the energy to fly!
Why are plants green?
Find out why plants are green and make a model of a plant cell.
Why does food go mouldy?
Find out why food goes bad and how to preserve it with a fun science activity using apples.
Questions about the human body
How do humans smell?
Find out how humans smell and why it affects taste with a simple science activity using jelly beans!
How do lungs work?
Find out how lungs work with a hands-on lung model.
How do we know to move our hand when we touch something very hot?
Learn about the nervous system and reflex responses with a model neuron.
Why do we need to brush our teeth?
Find out what happens if you don't clean your teeth with a simple activity using vinegar and eggs!
Space Questions
How do you find the North Star?
Find out how to find the North Star in the sky with this easy space science activity.
How big is the Solar System?
Map out the solar system to a scale you can recreate with this simple space science challenge!
What is a solar eclipse?
Make a simple model of a solar eclipse in this easy space science activity.
Climate Change
Do cows contribute to global warming?
Find out if cows contribute to global warming and try a fun science cow burping demo too!
Just for fun
How can you make a circle from a square?
Use a clever trick to make a circle from a piece of square paper!
How can you tell if an egg is boiled?
Eggs spin differently depending on whether they are boiled or raw. A raw egg wobbles and a boiled egg spins beautifully!
Why do balls bounce?
Learn about elasticity with a fun bouncy ball demonstration!
Why does toast land butter side down?
Does toast really always land butter side down? Find out with a fun kitchen science investigation.
Last Updated on February 24, 2026 by Emma Vanstone
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