
Explore, Discover and Win!
Experiments for you to try at home. Take photos and videos of the things you try and enter our competition to be in for the chance to win a £50 Science Museum Shop voucher!
Make sure you discuss your project with an adult before you start as some of these experiments will need adult supervision.
Experiments around the theme
of Curiosity: what’s your question?
The theme for this year’s British Science Week is ‘Curiosity: what’s your question?’ We’ve gathered some of our favourite experiments for you to try (with adult supervision). Explore those curious thoughts and see what you can learn. Take photos or videos as you go and enter your experiments and challenges into our competition!
British Science Week ActivityPacks


Try out an activity through British Science Week!
The free British Science Week activity packs are filled with a wide range of fun and educational activities, created by us and our partners, with the support of UK Research and Innovation. They include resources suitable for children from under 5s up to around age 14.
Or enter British Science Week’s 2026 poster competition!
The British Science Week poster competition takes place every year and invites young people from across the UK to take part. Each year, the competition is based on a fresh theme. In 2026, the poster competition is taking curiosity to the next level!

CHEMISTRY
Why is the sky blue?
If outer space is black, and air has no color, then why is the sky blue? Find out the science behind why!
PHYSICS
How do parachutes make things and people float in the air?
In this activity, you design a parachute for a miniature action figure.

BIOLOGY
How do fish breathe?
The process of fish getting the oxygen they need to breathe is so fascinating!

BIOLOGY
Can you grow an avocado from an avocado seed?
It’s true: with some water and soil you can start growing your own tree right at home.

NATURAL SCIENCES
Play Smashing Seasons with BBC Bitesize
Enjoy this interactive KS1 activity as you join Seymour Science and his friends to discover the Earth’s four seasons!

TECHNOLOGY
How is sound amplified?
Create your own DIY phone speaker to discover how you can redirect sound to make it stronger.

NATURAL SCIENCES
How are fossils made?
Set up your own excavation with coffee ground fossils!
PHYSICS
How far can I shoot a rocket?
Blast off! In this project you will make simple rockets out of paper and launch them by blowing into a drinking straw.

PHYSICS
Hot Wheels Braille Racer Challenges
The @HotWheels YouTube Channel has a whole host of activities dedicated to getting you engaged and discovering with the help of your cars. Plus you can apply for a free Hot Wheels Braille Racer through the VICTA Science Fair!
Dr Stephen Ward-Smith’s experiment
Learn about particle sizes
with Dr Stephen Ward-Smith
through chocolate!
You will need…
Chocolate 1 – Cadbury’s Dairy Milk.
Chocolate 2 – Galaxy
Scientist, Dr Stephen Ward-Smith wants to get you thinking about particle sizes and how they can impact every days things like… chocolate! So get your chocolate ready and do the taste test. Let us know your findings by entering them into our competition!
Download the chart demonstrating the differences in particle sizes >
Challenge time…
Other STEM activities and ideas to explore
Accessibility
In a bid to include as many ideas as possible, we understand some content and challenges may need parent or adult support to read and set-up. Please let us know about any particular difficulties you found and how these might be improved for future use. Get in touch at [email protected]













