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 1 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.

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SuperStar Home Learning

  • Text
  • Superstar
  • Rafts
  • Rocket
  • Shapes
  • Registered
  • Raft
  • Glue
  • Rockets
  • Association
  • Spinners
  • Yoghurt

Yummy Yoghurt Makers

Yummy Yoghurt Makers Activity Card You Mita Gabbar RE: Yummy Yoghurt Dear Investigators, I work for Practical Action. We do lots of things all over the world to help people who live in poverty. We work with farmers in Bangladesh. They sell milk from their cows at the local market but if they turn their milk into yoghurt and sell that instead they can get more money. We help them to do that. In Bangladesh, school is expensive. Farmers can use the money they make from yoghurt to send their children to school. Can you investigate the best way to make yoghurt? Don’t forget to send me the recipe for the most delicious flavour! Mita Gabbar Your challenge Investigate how to make the tastiest yoghurt from milk. Did the different types of milk make different types of yoghurt? Which flavours work best? Discuss Have you eaten yoghurt before? Which kind is your favourite? What type of milk do you think will work best? Why do you need to start with fresh yoghurt to make more? How will you test the yoghurts? You could do a blind taste test.

Getting started Before you start wash your hands with soap and water Pour your milk into a saucepan and gently heat it up. When it is 46 degrees celcius take it off the heat. Use a thermometer to help you. The yoghurt culture has live bacteria in it. Stir this into the warm milk. Pour the new mixture into a flask. In the morning the milk will have turned into yoghurt! Test your ideas You might like to record your results in a table like this one. You could use a tally to keep track. Yoghurt 1 Yoghurt 2 Yoghurt 3 Number of votes for favourite yoghurt Share your ideas Make a pictogram of each person’s vote – which yoghurt is most popular? Write to Mita to tell her what you have found out about making yoghurt. Extra things to do Design a poster to sell your yoghurt at market. Find out what else you can make from milk. Find out more about the food people eat in Bangladesh. Draw a picture of a meal a child your age might eat in Bangladesh...and include yoghurt! 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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SuperStar

Getting Started Guide: Primary
All SuperStar challenges