Fuels, moving water and devices
Answers are for parents and teachers.
1
Ask a grown-up which fuels were used in your home last week. Draw a table: Job, Fuel.
Answers differ, for example cooking: gas; travelling: petrol.
2
Write why moving water has energy. Give one old use and one new use of it.
It moves, so it has kinetic energy. Old: watermills that crush grain. New: making electricity.
3
A stream carries a stick 15 m in 5 s. What is its speed?
15 ÷ 5 = 3 m/s.
4
List six devices at home and sort them: battery, mains, sunlight or muscles.
Answers differ, for example torch: battery; fan: mains.
5
Write three “I wonder” questions about dams or about solar-powered devices.
Answers differ, for example: I wonder how a dam changes a river.