Inside your body you have an amazing mechanism called the immune system, which is responsible for protecting your 100 trillion cells. Learning about this system will help you to stay healthy and to understand what goes on in your body when you get sick.
Materials:
• 2 potatoes
• Vegetable peeler
• 2 clean jars with lids
• Soap and water
Try it:
1. With unwashed hands peel one potato. Place it inside a jar and seal with the lid.
2. Wash your hands with soap and water. Peel the second potato and place in the second jar and seal with the lid.
3. Store the jars in the same place.
4. Check every day for growth on the potatoes. Is there a difference?
