In your teams in class and over the next 2 weeks, we’d like you to design and make something which will keep Olaf’s ice cube buddies frozen for as long as possible. You can use any materials you want, but it must be made by you, as a team! If you need some ideas, you could look at the things you have at home which keep things cold.
- Research which materials are better and why-use links on the blog, books, own knowledge, other’s knowledge
- Test out your ideas
- You need to present findings
- Design and make your team’s invention
- Be as creative as you like
- Use your problem solving skills
- Work as a team!
We will be holding a competition at the end of the 2 weeks to see which invention keeps the ice cubes the coolest!
Heat passes through some materials easily and these materials are called thermal conductors.
Metals usually feel cold to the touch. Metals are good thermal conductors, because heat passes through them quickly.
These thermal insulators are good for keeping heat out as well and in. Some examples of good insulators are – a thermos – keeps hot things hot and keeps cold things cold, cooler – keeps the heat out and keeps the inside cool, and a polystyrene cup keeps the heat in and keeps it hot.
Remember that a good insulator is a poor conductor.
Heat loves to travel and will travel from a warmer material to a colder material. The heat will only travel from hot things to colder things and never the other way around.