Science Challenge

Science Challenge

Get involved in our January Science Challenge - Static electricity: Separate salt and pepper.

You will need adult help for this.

Resources:

  • 1 Teaspoon salt
  • 1 Teaspoon pepper
  • Plastic spoon
  • Dishcloth
  • Piece of paper 

Instructions:

  1. Carefully sprinkle a small pile of salt and pepper on a piece of paper. Then use the spoon to mix them together as well as you can.

  2. Rub the plastic spoon on the dishcloth for about 10 seconds. 

  3. Hold the rounded end up to your salt and pepper mixture.

  4. Watch to see what happens!

You can use a black piece of paper to see the salt more clearly.

Please send a photo on ClassDojo to your teacher. All entries will receive a sticker.

The Science:

It's not magic, it's static electricity! As you rub the plastic spoon, you are giving it a negative charge. Something that is negatively charged will attract things that have a different charge, like salt and pepper in this case. Static electricity can cause materials to attract or repel each other. 

Science of the Month - Electricity

Choose one of the following topics to investigate:

  1. Try the experiment by holding the spoon at different angles. Does anything change?

  2. Find out 5 facts about electricity.

  3. Research how to stay safe around electricity. 

Download

You can also download our Science Challenge as a PDF.