Year 4


Unit 7: Energy


Energy sources

Renewable


✅ A source of energy that can be generated continuously

Non-renewable


✅ Energy sources that are limited and cannot be regenerated

Water

Wind

Waves

Biomass

Sun

Food

The sun is a constant source of energy

Waves exist naturally

Water is always available

Wind is unlimited and everywhere

Biomass is always available because it exists in natural substances

provides energy to human and animal for daily activities

Nuclear Substance

Fossil Fuel

coal

natural gas

petroleum

uranium