When you switch on a light or charge a tablet, where does that energy come from? Hands up one idea.

Today we will sort energy sources into two big groups and feel one of them for ourselves.

Energy comes from an energy source — a place or thing that gives us heat, light or power.

Turn and talk: if we keep using something for years and years, will nature make more of it quickly, or will it slowly disappear? Be ready to share one idea with hands up.

In your group, look at the six energy-source cards:

• wind — moving air
• sun — light and heat from the sun
• turf — peat from Irish bogs
• gas — natural gas from under the ground
• moving water — rivers and dams that make electricity
• wood — trees grown for fuel

Five sources that were not on your cards. Use the same question.

Will we still have it in a hundred years, or will it run out?

The last one is the argument. You sorted wood already. Does wood we plant again go in the same place?

Ireland once burned a lot of turf; now many hills have wind turbines spinning in the same weather that flaps your coat.

Your teacher has an outline map of Ireland on the board. Together we will place each energy source where you might notice it in Ireland, and say renewable or non-renewable as it goes on:

• wind — hills and coasts
• moving water — rivers and dams
• sun — rooftop panels
• gas — power stations and some homes
• wood — grown as fuel
• turf — bogs