- To understand that animals have special adaptations to survive harsh environments.
- Understand that living things live in habitats to which they are suited.
- Understand that fat is a good insulator.
- Latex or rubber gloves
- Washing up bowl
- Simple stopwatch
- Thermometer – optional
- Place ice and water in a washing up bowl.
- Carefully place your hands in the ice water and time how long you can keep them in the water before it gets uncomfortable using the stopwatch – be careful not to leave your hands in the water for too long.
- Put the glove on and cover with lard.
- Put the gloved hand in the ice water and time how long it takes to feel uncomfortable.
- You should find that the lard acts as an insulator protecting your hands from the cold of the icy water.
- On a cold day try wearing one thick jumper and then lots of layers, which keeps you warmer?
- Can you measure the water temperature before and after adding the ice?
- How many different adaptations that animals use to stay warm can you remember?