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 (

Buy Them Try Them

Buy Them Try Them Organiser’s Card About the activity This activity is designed to get children thinking about toothpaste, what it is made from and how different brands of toothpaste differ. The children have been shown an advert for Bright Smile Toothpaste. Can they do some tests to check that the claims are correct before the ad goes to print? They’ll have to check people agree with the advert first! Through this activity you will support your group to: • Carry out investigations on manufactured toothpaste • Compare these with a homemade toothpaste (optional) • Carry out toothpaste surveys. Kit list • At least 3 different brands of toothpaste for comparison • Spare clean toothbrushes (not for teeth cleaning) • White tiles or old plates • Permanent markers or shoe polish • Additional plastic containers and/or plates • Covering for the tables • Plastic aprons What to do 1. Introduce the activity using the story. 2. Give out activity cards and equipment to the children. 3. Explain that they will be exploring different kinds of toothpaste and doing a survey on their friends and family to find out which toothpaste people like best and why. 4. Encourage children to discuss their ideas and how to carry out their investigations. 5. Support children to conduct their investigation and make their own records of their results. If children do have their own toothbrushes, they could test the toothpastes with dental disclosing tablets on their own teeth. Using plates and markers may make a better investigation. 6. Ask the children to present their findings to the rest of the group, they can be as creative in their presentation as they want.

Keywords • Toothpaste • Cleaning • Survey Watch out! If children use the toothpaste on their own teeth, they will each need their own brush and toothpaste sample. Homemade toothpaste should only be tasted if you are certain it has been prepared hygienically. 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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