Scientist Activity Badge

• Show how vinegar reacts with different items and explain what happens. The different items could be steel wool, sodium bicarbonate or old dirty coins.

• Find out what happens when you add salt to water.

• Compare the density of water to the density of other liquids. Show how these liquids react to each other.

• Make a pH indicator solution. Use it to test the acidity or alkalinity of other liquids.

• Grow crystals.

• Create a basic electrical circuit which includes a switch. Show how it could be used to control a lightbulb powered by a battery.

• Make an air powered balloon rocket or a water rocket. Investigate ways of improving how far it can travel.

• Make a simple compass. Show the effects of metallic and magnetic materials upon it.

• Use marshmallows and spaghetti to build the strongest tower you can. Explain how you have improved your design.

• Find a way to show that hot air rises.

• Set up a wormery or ant colony. Record what happens over three or four weeks

• Investigate what happens to your pulse rate before, during and after exercise.

• Grow cress, beans, peas or a similar plant. Investigate what happens when the plant has no access to light. What happens when it has light, but no water?

• Find a way to show that plants take water up through their stems.

• Make some yoghurt and find out how living organisms are involved in the process.