Primary challenges (ages 5-11)

Typically completed by 5-11 year olds, CREST Star and SuperStar challenges relate to everyday experiences. Children complete eight activities to gain a CREST Award, with each activity taking between 45 minutes and one hour to complete.

The activities are designed to be easy-to-run and low-cost. You don’t need to be a teacher, have a science background or have access to specialist equipment to run them. The packs contain helpful hints and tips for you to use, explaining the scientific themes and offering guidance on conversation topics for your children.

There are more CREST approved resources that have been developed by our partners and providers specific to your region.

To browse the packs, click the buttons below or scroll down.

3 years ago

Star Home Learning

  • Text
  • Challenges
  • Encourage
  • Hankie
  • Materials
  • Stella
  • Registered
  • Pegs
  • Cans
  • Association
  • Bubbles
  • Cosmic
This resource is published under an Attribution - non-commercial - no derivatives 4.0 International creative commons licence (

Brilliant Bubbles

Brilliant Bubbles Activity Card Cosmic is very excited. Today is his birthday! His present is a big, bright purple bubble machine. When he turns the handle, dozens and dozens of bubbles float out into the air. Gem arrives to wish him happy birthday. Cosmic shows her how his new bubble machine works. “What lovely bubbles!” Gem shouts, as she jumps about trying to catch them. “You must be able to make different bubbles,” says Gem, peering into the end of the machine. “Perhaps there’s something wrong with it.” What do you think? “They are OK,” says Cosmic. “But they are all the same shape... And they are all the same size... And they are all the same colour. I wanted lots of different bubbles, but these are all the same.” ‘I’m not sure,” says Cosmic. Your challenge Can you find a way to blow different bubbles for Cosmic? Cosmic thinks you can make bubbles with different shapes Gem thinks you can make different size bubbles Aunt Stella thinks you can make different colour bubbles

Discuss Have you ever blown bubbles? Do you think that they were all the same? Getting started Put some bubble liquid in a bowl or tray. Use a straw to blow some bubbles. Don’t share your straw with anyone else. Dip the end of the straw in the liquid. Lift it out. Now blow down your straw to make a bubble. Try blowing gently and then blowing harder. How do the bubbles change? Test your ideas Can you think of other ways to find out about bubbles? Share your ideas You could have a bubble competition to see how many different types of bubbles you can blow. Extra things to do Find out how long you can keep a bubble before it bursts. Find out whether bubbles float or fall to the ground. Find out how long you can keep a bubble in the air. British Science Association Registered Charity No. 212479 and SC039236

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Star level

Collections of one hour challenges recommended for children aged 5-7 years that relate to children’s everyday experiences. Find out more about this level and how to gain a CREST Award on the CREST Star page.

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SuperStar level

Collections of one hour challenges recommended for children aged 7-11 years that realate to broader situations that children are likely to have come across. Find out more about this level and how to gain a CREST Award on the CREST SuperStar page.

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