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.

5 years ago

All SuperStar challenges

  • Text
  • Handson
  • Stem
  • Challenges
  • Discussion
  • Explore
  • Create
  • Experiment
  • Investigate
  • Toothpaste
  • Materials
  • Glue
  • Tomato
  • Yoghurt
  • Superstar
The activities in this pack have been selected from our library of CREST SuperStar challenges. Children need to complete eight challenges to achieve a CREST SuperStar Award. If you want, you can mix and match challenges from different packs, as long as children complete eight SuperStar challenges. This resource is published under an Attribution - non-commercial - no derivatives 4.0 International creative commons licence (


TOMATO SAUCE TOMATO SAUCE Tomato Sauce Activity Card Startown Sensational Sauces has opened in the town. Their extra tasty recipes are already very popular and are selling out fast. Unfortunately, last week they were overwhelmed with complaints about their tomato sauce. One disappointed customer wrote, TOMATO SAUCE “It was hopeless. I shook the bottle really hard but nothing came out. The tomato sauce was far too thick. Chips are just not the same without tomato sauce.” TOMATO SAUCE Another customer said, “I tipped up the bottle and out flopped all the sauce! What a shock! Everything was red. What use is tomato sauce if it all pours out at the same time?” TOMATO SAUCE Startown Sensational Sauces is asking for help to put the problem right. How thick should tomato sauce be? Your challenge Find the perfect thickness for tomato sauce – not too thick and not too thin, but just right. TOMATO

Discuss TOMATO SAUCE How thick do you think tomato sauce should be? How quickly should it pour? How well should it keep its shape on the plate? Should it pour easily though a small hole? How well should it cling to a chip? Getting started You could do a drip test to see how well the sauce drops off a spoon or pipette. How about letting it run down a slope? You could watch how it splats on a plate. You could see how easily it drips through different sized holes. Why not put it on a chip and see how easily it slides off? TOMATO SAUCE Share your ideas TOMATO SAUCE Test your ideas What will you measure? What will you observe? How many tests will you do? Don’t forget to try different thicknesses (you could add water to the sauce to make it a different thickness) You could write a story about scientists working in the Startown Sensational Sauces’ testing laboratory. How would they test the tomato sauce and what might they find out? Extra things to do Find out the ingredients of tomato sauce. You could try to make some. Test different makes of tomato sauce. Are they all the same runniness? Look at tomato sauce bottles. How are they designed to help you to get the tomato sauce out? British Science Association Registered Charity No. 212479 and SC039236

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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