This document discusses three non-renewable energy sources: crude oil, natural gas, and coal. Crude oil and natural gas are combustible liquids and gases found underground or under seas that are used to produce thermal energy by burning petrol or the fuels directly. Coal is a combustible solid mined from the ground that is also burned to produce thermal energy, though these resources will eventually disappear as they cannot be replaced.

1. SCIENCE-THIRD PRIMARY YEAR
CEIP CORTES DE ARAGÓN
(Teacher: Miguel Navarro)

2. - IT IS THE ENERGY THAT COMES FROM THE GROUND AND THE
SEA
- THEY ARE GOING TO DISAPPEAR AND THEY CAN´T BE
REPLACED
1.- CRUDE OIL
- IT IS A COMBUSTIBLE LIQUID
- IT COMES FROM THE GROUND OR THE SEA
- WE USE OIL TO PRODUCE PETROL
- WE BURN PETROL TO PRODUCE THERMAL
ENERGY

3. 2.- NATURAL GAS
- IT IS A COMBUSTIBLE GAS
- IT COMES FROM THE GROUND
OR THE SEA
- WE BURN IT TO PRODUCE
THERMAL ENERGY
3.- COAL
- IT IS A COMBUSTIBLE SOLID
- IT COMES FROM THE GROUND,
IN MINES
- WE BURN IT TO PRODUCE
THERMAL ENERGY