1. How
does
it
work?
SCIENCE
UNIT 10

2. Tools and machines
Tools and machines make work easier
but machines are more complex.
A pick is a tool A road drill is a machine
Both make holes, but the road drill is more complex

3. Tools

4. Machines
Car
Washing machine
Crane
Watch
Road drill
Hairdryer
Fridge
Microwave
Iron

5. Machines:
Means of transport
bicycle car tractor bus
plane motorbike lorry helicopter

6. Machines:
Means of communication
computer television
telephone radio

7. Parts of a computer
Central Processing Unit

8. Machines that use petrol

9. Machines that use batteries

10. Machines that use electricity

11. What tools do different
professions use?

12. doctor farmer

13. firefighter mechanic

14. hairdresser cook

15. teacher builder

16. cleaner pilot