Bronze Awards are typically completed by students aged 11+. They complete a ten-hour project which is a perfect introduction to STEM project work. Over the course of the project, teams of students design their own investigation, record their findings, and reflect on their learnings. This process gives students a taste of what it is like to be a scientist or engineer in the real-world.
Silver Awards are typically completed by students aged 14+ over thirty hours. Project work at Silver level is designed to stretch your students and enrich their STEM studies. Students direct the project, determining the project’s aim and how they will achieve it. They carry out the project, record and analyse their results and reflect on the project and their learnings. All Silver projects are assessed by CREST assessors via our online platform.
Gold Awards are typically completed by students aged 16+ over seventy hours. Students’ projects are self-directed, longer term and immerse them in real research. At this level, we recommend students work with a mentor from their chosen STEM field of study. All Gold projects are assessed by CREST assessors via our online platform. There are more CREST approved resources that have been developed by our partners and providers specific to your region.
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Page 1 of 2 Make your own toothpaste In this project you will make your own toothpaste and compare it to other commercially available toothpastes. You will then develop your recipe and write a standard operating procedure so that anyone can make your toothpaste. Getting Started First, you need a recipe for toothpaste. The comparison : Next you should test your toothpaste. Toothpaste is supposed to clean teeth but it also matters to people that it tastes nice. You could do a taste test with your and other toothpastes by asking your classmates to taste a little bit of them (but don’t swallow!) and say what they think. They could comment on the way they looks and its consistency - how paste like it is? Improving the recipe: Look at all the things your classmates said about the different toothpastes and decide if you think your recipe needs to be changed slightly. For example, you might want to add a little bit more flavour or add a different colour. Writing a standard procedure: When you think you’ve made the perfect paste, re-write the recipe as a standard procedure. Standard procedures are really precise recipes or ways of doing things, it will mean that anyone who wants to make your toothpaste will make it exactly the way you want them to make it. These are the sorts of things you should think about … Make sure all the amounts are precise. For example, instead of writing ‘6 tbsp’ give a precise measurement such as 90 cm Click to edit project 3 (1 tbsp equals 15 cm description 3 ), otherwise people might use a heaped tablespoon or a flat tablespoon, which are different amounts. Instead of saying ‘add just enough water to make it toothpaste like’, write down precisely how much water should be used. Things to think about Your testers could comment on its abrasiveness - how scratchy it is (rub it between your fingers to work this out). Make sure you write down what people say. You could give your toothpaste a name. You could design a logo and packaging for your toothpaste. Useful Resources You could find your own toothpaste recipe on the internet, try searching for ‘homemade toothpaste’. If you can’t find your own recipe for toothpaste, you can use the one below - you may need some help finding the ingredients. You will need: bicarbonate of soda, salt, glycerol, flavouring (e.g. peppermint or cinnamon) and food colouring. Mix six tablespoons of bicarbonate of soda with two tablespoons of salt. Add three teaspoons of glycerol, 10-20 drops of flavouring and 1 drop of food colouring. Mix the ingredients thoroughly in a bowl and add just enough water to make it toothpaste like. Write down precisely how the mixture should be stirred. For example, should people use a spoon, or a fork? Should they mix it quickly, or slowly? What will you need to say about health and safety?