# Unit 10: Energy Sources

> Từ vựng và mẫu câu Unit 10 (Energy Sources), i-Learn Smart World 7: … is cleaner / cheaper than … / We should use … to reduce ….

Source: https://olyclass.com/library/tb-ilearn-smart-world-g7-u10/

- Subject: English
- Level: A2
- Textbook unit: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=tb-ilearn-smart-world-g7-u10
- Copy and edit it: https://olyclass.com/library?copy=tb-ilearn-smart-world-g7-u10
- Games it plays well in: [Lucky Wheel](https://olyclass.com/classroom-games/lucky-wheel/), [Picture Dice](https://olyclass.com/classroom-games/picture-dice/), [Ladder Climb](https://olyclass.com/classroom-games/ladder-climb/), [Paper Race](https://olyclass.com/classroom-games/paper-race/)

## Words in this game

- **coal**: Some old power plants burn coal.
- **natural gas**: We cook with natural gas at home.
- **nuclear power**: Nuclear power makes a lot of electricity.
- **oil**: Cars use oil to run.
- **hydropower**: Hydropower comes from moving water.
- **solar power**: Solar power comes from the sun.
- **wind power**: Wind power is clean and safe.
- **wind turbine**: The wind turbine turns very fast today.
- **solar panel**: We put a solar panel on the roof.
- **power plant**: The power plant makes electricity for the city.
- **renewable energy**: Renewable energy will never run out.
- **non-renewable**: Coal is a non-renewable energy source.

## Questions

1. Solar power is ___ than coal. (cleaner / dirtier / more dangerous / older)
   Answer: cleaner
2. Wind is free, so wind power is ___ than oil. (cheaper / dirtier / heavier / more expensive)
   Answer: cheaper
3. We should use ___ to reduce pollution. (more coal / more oil / old cars / solar panels)
   Answer: solar panels
4. We should use ___ to reduce the use of oil. (more petrol cars / oil heaters / old trucks / wind turbines)
   Answer: wind turbines