# The Energy Journey: Part 3 Be Energy Wise How to use electricity sensibly.

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The Energy Journey: Part 3 Be Energy Wise How to use electricity sensibly

Your Climate Cops mission To understand that everyday appliances use electricity To understand that different appliances have different power ratings To understand how power ratings affect the amount of energy used To identify how to save energy by understanding: - Why do we want to save electricity? - How will we save electricity? - How will we know weve saved electricity?

Activity 1: Watt is Right?

How do we measure electricity use? Did you know… Lots of things in our homes need electricity to work The amount of electrical power an appliance uses is measured in Watts (W) and Kilowatts (kW) 1000 watts = 1 kilowatt

Your mission Are you ready… Can you put the items in order starting with the one that uses the least amount of power first?

Climate Cops discussion So, which appliances do you think need lots of power to make them work? How long do you or your family use the different appliances every day?

For how long do you use the appliances? Electrical Appliance Watts (W) Kilowatts (kW) The number of hours used Electrical energy used in kWh Cooker10,000W10kW Washing machine 3,000W3kW Kettle2,000W2kW Vacuum Cleaner 1,000W1kW Microwave800W0.8kW Toaster750W0.75kW

For how long do you use the appliances? Electrical Appliance Watts (W) Kilowatts (kW) The number of hours used Electrical energy used in kWh Television300W0.3kW Fridge/Freezer125W0.125kW Lamp60W0.06kW Ordinary bulb40W0.04kW Games console10W0.01kW Energy saving bulb 7W0.007kW

POWER: we measure the amount of electrical power an appliance uses in watts (W) or kilowatts (kW) ENERGY: we work out how much electrical energy is used by multiplying the power of the appliance by the number of hours it is used for. This gives us the amount of energy used in kilowatt- hours or kWh One kWh is the energy used when one kilowatt of power is used for one hour Power vs. Energy

Saving energy Climate Cops quick quiz… If an ordinary light bulb uses 40 watts of power… How much energy would be used if it was on for 4 hours? If an energy saving light bulb uses 7 watts of power… How much energy would be used if it was also on for 4 hours? How much energy would be saved?

Activity 2: The Climate Cops Quiz

Do you know why its important to be energy wise? Lets play the Climate Cops quiz to find out. Are you ready?

Climate Cops: Question 1 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 The light is left on when there is no one in the room Statement 2 This wastes lots of electricity The Climate Cops quiz

Climate Cops: Question 2 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 We have three energy saving light bulbs Statement 2 If every house fitted three energy saving light bulbs, it would save enough energy to run the countrys street lights for a year Source: www.energysavingtrust.org.uk The Climate Cops quiz

Climate Cops: Question 3 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 The TV is left on standby Statement 2 Appliances on standby dont use energy The Climate Cops quiz

Climate Cops: Question 4 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 Hot food is put in the fridge or freezer Statement 2 More energy will have to be used to cool the food down The Climate Cops quiz

Climate Cops: Question 5 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 Boiling a full kettle of water to make one cup of tea Statement 2 Energy and water are not being wasted The Climate Cops quiz

Climate Cops: Question 6 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 We have a dripping hot water tap in our kitchen Statement 2 It wastes energy and in one week wastes enough water to fill half a bath Source: www.energysavingtrust.org.uk The Climate Cops quiz

Climate Cops: Question 7 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 A house with dirty windows Statement 2 It would make no difference if the windows were clean The Climate Cops quiz

Climate Cops: Question 8 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 Heat can escape through walls, windows, the roof, floors, doors and draughts Statement 2 Insulating your home will stop the heat from escaping The Climate Cops quiz

Climate Cops: Question 9 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 We have an energy saving fridge Statement 2 Energy saving appliances cost less to run and also help reduce climate change The Climate Cops quiz

Climate Cops: Question 10 ARE THEY CONNECTED? TRUE OR FALSE Statement 1 A mobile charger is left plugged in when the phone has finished charging Statement 2 Leaving my charger plugged in doesnt waste energy The Climate Cops quiz

The Climate Cops quiz: Answers Climate Cops: Question 1TRUE Climate Cops: Question 2TRUE Climate Cops: Question 3FALSE Climate Cops: Question 4TRUE Climate Cops: Question 5FALSE Climate Cops: Question 6TRUE Climate Cops: Question 7FALSE Climate Cops: Question 8TRUE Climate Cops: Question 9TRUE Climate Cops: Question 10FALSE

The Climate Cops quiz: Whiteboard activity Statement 1Statement 2Tick if true The light is left on when there is no one in the room. This wastes lots of electricity. We have three energy saving light bulbs in our home. If every house fitted 3 energy saving light bulbs, it would save enough energy to run the countrys street lights for a year. The TV is left on standby.Appliances on standby dont use energy. Hot food is put in the fridge or freezer. More energy will have to be used to cool the food down. Boiling a full kettle of water to make one cup of tea. Energy and water are not being wasted.

Statement 1Statement 2Tick if true We have a dripping hot water tap in our kitchen. It wastes energy and in one week wastes enough water to fill half a bath. A house with dirty windows.It would make no difference if the windows were clean. Heat can escape through walls, windows, the roof, floors, doors and draughts. Insulating your home will stop the heat from escaping. We have an energy saving fridge. Energy saving appliances cost less to run and help reduce climate change. A mobile phone charger is left plugged in when the phone has finished charging. Leaving my charger plugged in doesnt waste energy. The Climate Cops quiz: Whiteboard activity

Climate Cops discussion So, what have you learnt from this?

Activity 3: The Earth Needs You

Climate Cops discussion The most environmentally friendly energy is the energy we dont use. Why do you think its important that we try not to waste electricity, energy and water?

The reasons to SAVE energy 1. To SAVE the environment 2.To SAVE the Earths non-renewable sources 3.To SAVE money

1. To SAVE the environment Image by: Thomas Picard, PocketAces Image by: Hafsah Al-AzemImage by: Selma Dredge

Did you know… When we go about our daily lives, using cars and planes and heating our homes, all these activities release a gas called carbon dioxide. Carbon dioxide pollutes our atmosphere. Carbon dioxide is produced by power stations that generate electricity. Carbon dioxide speeds up the climate change process.

See how climate change works

Negative effects of climate change If the heat cannot escape, the Earth will warm up too much. This is called global warming or the greenhouse effect.

Negative effects of climate change Ice caps will melt Image by: Thomas Picard, PocketAces

Image by: Hafsah Al-Azem Droughts We are already seeing more droughts in many countries. Negative effects of climate change

Image by: Selma Dredge Flooding There is heavy rain and winds causing damage in others. Negative effects of climate change

2. To SAVE the Earths non-renewable sources

Did you know… Most of the UKs electricity is produced by burning fossil fuels like coal, oil and gas These will eventually run out

3. To SAVE money Image by: Ajay Singh

Did you know… Together, we could save millions of £££s on our electricity and gas bills if we didnt waste energy.

Energy wasting cards Working in groups, see if you can guess all the activities that waste energy. Use drama, charades or any other ways you can think of to get the class to guess the energy wasting activity on your card!

Can you remember all the energy wasting activities? (Space to write all the correctly guessed activities, plus any additional suggestions)

Activity 4: Energy Questionnaire

How do you use energy at home? Fill in the Energy Questionnaire Then in your groups, discuss your answers. What should you do and why?

Our class response Double-click on the bar chart to insert your class data.

Climate Cops discussion So, how could the class be more energy efficient?

Activity 5: Investigation Light Bulb

Did you remember that… POWER: measures the amount of electrical power an appliance uses in watts (W) or kilowatts (kW) ENERGY: is the amount of electrical energy that is used

Climate Cops discussion Do you think a light bulb uses much power? Do you think it uses much energy?

Investigation light bulb Ordinary light bulbs use less power compared to many other things that use electricity Energy saving light bulbs use even less than ordinary light bulbs But we have lots of lights in our homes and school We also use lights for long periods of time

Investigation light bulb homework Your mission: To see how much energy your lights are using in your home. To see how much energy could be saved if energy saving light bulbs were used.

Investigation light bulb – Follow-up If all the bulbs in your house were energy saving light bulbs, how much energy would be saved every day?

Did you know… If everyone fitted just one energy saving light bulb, the carbon dioxide emissions saved would fill more than 1 million double decker buses If each house fitted three energy saving light bulbs, it would save enough energy to run the countrys street lights for a year Source: www.energysavingtrust.org.uk

Activity 6: Whats on the Meter?

Quick question… What is an electricity meter?

Answer… Every house has an electricity meter. It records the amount of electricity used within our home.

Whats on the meter? Your mission: By following the top tips on The Earth Needs You poster, can you reduce the amount of electricity you use?

Whats on the meter? Homework follow-up When was the most electricity used? Was it in Week 1 or Week 2? What could be the reasons for this? When do you think the most electricity is used and why? - At school - At home Do you think any energy was wasted during the week? How could you have been more energy efficient?

Activity 7: Be a Climate Cop

The Climate Cops team need your help to find ways to save energy and help the planet. Use your skills of investigation to help cut down on the energy wasting activities that could be taking place in your school. Do you want to be a Climate Cop?

What did you find in school? (Space to capture what the children found)

How can we fix the problems? (Space to capture the childrens suggestions)

Now its time to use your skills of investigation in your home too. What about at home?

What did you find at home? Homework follow-up (Space to capture what the children found)

(Space to capture the childrens suggestions) How can we fix the problems? Homework follow-up

Now develop one of the following: A letter for the Headteacher about how the school can be more energy efficient A letter for your parents about how you can all be more energy efficient at home An energy saving policy for the school and your home Climate Cop training: Follow-up

Spread the word Now that you understand the importance of using energy wisely, its time to tell others too. Develop one of the following: - A suite of posters to remind everyone at home or at school of the different ways to be energy efficient - A leaflet that communicates the top tips on energy efficiency and the reasons why its important -An article for a local community newsletter that encourages people to take local action, for global effect

Activity 9: Call Energy Efficient House! Bingo Game

Lets play Your bingo card holds lots of energy wasting activities Cross off the energy wasting activities You have to cross out a complete row of four Then call Energy Efficient House to win!

Good Luck!

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