Water as an energy source (non-statutory) | Science | Quizalize & Oak National Academy

Starter quiz

__________ resources are those which are never used up and so do not need to be replaced.
- Renewable ✓
- Non-renewable
- Recyclable
- Non-recyclable
Why are scientists and engineers researching renewable energy sources?
- because fossil fuels have no impact on the environment
- because fossil fuels are running out ✓
- because burning fossil fuels damages the planet ✓
- because there is a good supply of fossil fuels
What do solar cells convert into electricity?
- water
- light ✓
- wind
- fossil fuels
______ turbines use moving air to generate electricity.
- 'Wind' ✓
What are fossil fuels made from?
- the remains of living things over millions of years ✓
- rocks heated up in volcanoes over millions of years
- rocks in the seabed over millions of years
Match each fossil fuel to the state it is in at room temperature.
- coal
  
  ⇔
  
  solid ✓
- crude oil
  
  ⇔
  
  liquid ✓
- natural gas
  
  ⇔
  
  gas ✓

What is the name given to a wall built across a valley to raise the level of water.
- reservoir
- dam ✓
- turbine
Which of these energy sources use turbines to generate electricity?
- solar
- wind ✓
- water ✓
- fossil fuels
Why are water turbines built below dams?
- so they can make the water in the reservoir move
- so they can make the water below the reservoir move
- so the water from the reservoir flows down from a height onto the turbines ✓
How does moving water help to generate electricity?
- It can be burnt to produce energy.
- It turns the blades of turbines. ✓
- It is converted to energy in solar panels.
Moving water is a ______ energy source.
- 'renewable' ✓
Decide if the following statement is true or false and select a reason for your answer: 'Using moving water is a more environmentally-friendly way to generate electricity than burning fossil fuels.'
- true ✓
- false
- using moving water doesn't add carbon dioxide to the atmosphere ✓
- burning fossil fuels doesn't add carbon dioxide to the atmosphere

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Scientists investigate alternative energy sources to fossil fuels.
Water turbines are built below dams. Water flows down from the reservoir and turns the turbine.
The movement of the turbine is used to generate electricity.
Moving water is a renewable energy source as there will always be water on Earth.
Scientists investigate how moving water in oceans can be used to generate electricity

Children may think that water wheels and water turbines cause water to move when they spin.

Teaching slides explain that water wheels and water turbines harness the energy of water to do work for us or to generate electricity.

Energy source - Energy sources can be used to provide heat, light, or power.
Generate - To generate electricity is to produce or make it.
Reservoir - A water reservoir is a large artificial lake used to store water.
Dam - A dam is a barrier constructed to hold back water.
Water turbine - A water turbine is a device that is turned by water to generate electricity.