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ENERGY RESOURCES

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Be able to draw a scientific diagram. 32. index. The safe use of a Bunsen burner ... I know how and why Bunsen Burners can make different flames. ... – PowerPoint PPT presentation

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Title: ENERGY RESOURCES


1
ENERGY RESOURCES
  • Unit 7i sets 2 3
  • (adapted)

2
index
lesson 1 What is fuel? Homework task 1 Lesson 2
Energy types and transfer. Lesson 3 The safe use
of a Bunsen burner. Homework task 2 Lesson 4
Comparing the energy output from different Bunsen
flames Homework task 3
3
Lesson 1
  • What is fuel?

4
Objectives Outcomes
  • To learn what fuels really are.
  • To learn what happens to the energy in fuels.
  • Be able to name different fuels.
  • Know what kind of energy is in fuel.
  • Know what useful energy comes from machines.

5
Equipment
One Bunsen burner, kettle, mug, teabag, matches,
tripod spoon. (for demo) Model steam engine
fuel tablets. Model generator
6
Demonstrations
video
video
7
The generator
what type of energy is in the fuel?
what useful energy comes out?
what fuel does it use?
what wasted energy comes out?
How will I know that you have understood?
8
A bit more to do
  • What is fuel?
  • This is about deciding which fuels are used and
    what types of energy are involved.
  • This may be set as homework.
  • Cut Paste sheet 1 (full sheet)
  • Cut and paste sheet 2 (tables only)

9
Homework task 1
  • What is fuel?
  • This is about deciding which fuels are used and
    what types of energy are involved.
  • Complete WHAT IS FUEL? Due next lesson.
  • Cut Paste sheet 1 (full sheet)
  • Cut and paste sheet 2 (tables only)

10
Plenary
use mini whiteboards
  • The names of 5 fuels
  • What energy type is in fuels?
  • What do machines all do?

Check back to objectives and outcomes.
11
Lesson 2Energy Resourcesand Energy Transfer
  • What are fuels and why are they useful?

West Wight Middle School Science
12
Objectives and outcomes
  • To gain a good knowledge of the fuels we use.
  • To understand how we release the energy in fuels.
  • Learn about energy types and transfer.
  • Know that energy can be converted from one type
    to another.
  • Know that energy transfers cause some energy to
    be wasted.

13
Fuels
din dins
Wood
Coal
Mineral oil
Natural gas
Butane gas
14
What is a fuel?
All fuels are concentrated stores of energy.
Coal Mineral oil Natural gas Wood any
more?
15
Links
Sky News Buncefield fuel depot BBC News
Buncefield fuel depot Hand Grenade in Newport,
Isle of Wight
16
What fuels do these use?
17
Machines
Machines change fuel energy into a different type
of energy.
ENERGY IN
ENERGY OUT
energy transfer
18
Power Station A huge machine
What is a power station for?
To change the energy in mucky coal into something
more useful
Electrical energy
19
Fuel For A Power Station
COAL Chemical Energy
20
Other power stations use
GAS
MINERAL OIL NUCLEAR ENERGY DOMESTIC WASTE
but they are all transfer energy.
21
The power station converts the chemical fuel
energy into
electrical energy.
22
Energy out
Useful energy Electricity.
Wasted energy Heat and sound.
23
Steam Engine
24
Steam Locomotive
Very Wasteful
Lots of noise
Lots of wasted heat
Not so much movement!
25
Energy transfer
26
Energy transfer
IN
OUT
Useful Movement.
converter
Wasted Heat Sound.
Chemical energy in coal.
27
Getting the brain in action
  • Name one energy source we use at home that is not
    a fuel.
  • What type of energy is in fuels?
  • What happens to energy in a machine?
  • Power stations convert the energy in fuel into
    electrical energy. Why do we get less energy out
    than we put in?

28
Checking your learning
Objectives of this lesson.
29
Lesson 3
  • The safe use of a Bunsen Burner and preparing for
    an investigation.

30
Equipment
  • Bunsen burners 16
  • Matches
  • Study guides
  • Rubber bands for hair
  • Exercise books
  • Study guides
  • Diary
  • Writing drawing equipment
  • Homework

31
Objectives and outcomes
  • Learn how to set up and use a Bunsen Burner
    safely.
  • Learn how and why Bunsen Burners can make
    different flames.
  • Confidently use a Bunsen Burner.
  • Know how to be absolutely safe.
  • Know how to change the heat output.
  • Know about the energy transfer.
  • Be able to draw a scientific diagram.

32
The safe use of a Bunsen burner
  • Draw an accurate scientific diagram of a Bunsen
    burner.
  • Annotate it to explain the functions of its parts.

33
RISK!
  • THIS IS A DANGEROUS ACTIVITY!
  • LISTEN to safety instructions.
  • FOLLOW safety instructions.

This lesson is all about the SAFE use of Bunsen
burners.
34
Using the Bunsen A quick check of your
knowledge and skills.
35
Homework task 2
  • Design an imaginative cartoon strip or flow chart
    to explain the safe setting up and use of a
    Bunsen burner. You might like to include some of
    the consequences of improper use.

HOMEWORK SHEET
36
How will the apparatus be set up?
37
Questions for your whiteboard.
  • Why does the Bunsen burner have a valve at its
    base?
  • What fuel does the Bunsen burner use?
  • What gas from the air is used when the burner is
    alight?
  • Explain why you get more heat energy when the
    valve is open.
  • Why is it essential to have the valve closed when
    the Bunsen is first lit?
  • How can you check your results for accuracy?

38
Plenary
  • I can set up and use a Bunsen Burner safely.
  • I know how and why Bunsen Burners can make
    different flames.
  • I can use a Bunsen burner confidently .
  • I know how to be absolutely safe.
  • I know how to change the heat output.
  • I know about the energy transfer.
  • I can draw a scientific diagram.

39
Lesson 4
  • Comparing the energy output from different Bunsen
    flames

40
Equipment
  • Bunsen burners 16
  • Tripods with gauzes
  • Matches
  • Thermometers 16
  • Measuring cylinders
  • Goggles
  • Results tables
  • Rubber bands for hair
  • 250 cm³ glass beakers
  • Retort stands clamps
  • Calculators
  • Timers
  • Homework
  • Exercise book
  • Study guide
  • Drawing writing equipment
  • Calculator
  • Mini whiteboard, pen eraser.

41
Objectives outcomes
  • Learn how to measure how much energy transfers.
  • Know how to work out heat energy transfer.
  • A set of accurate results.
  • A written conclusion.

42
RISK
  • DANGER! Bunsen flames, glass hot water.
  • One Bunsen per group.
  • Dont sit! Stools underneath.
  • Hair tied, use goggles.
  • BE A RESPONSIBLE STUDENT!

43
If you move the valve, do you get more energy out?
  • Instructions
  • THINK! 100 cm³ of water heated for 60 seconds.
  • SAFETY!
  • Do the test. Get some results.

44
What did you find out?
  • Discuss your results as a group.
  • Work in pairs using a mini whiteboard to devise a
    conclusion.

45
What did you find out?
CLASS DISCUSSION ABOUT CONCLUSIONS (draft on
screen)
plenary
  • Redraft your conclusion in your exercise book.

46
Homework Task 3
  • Complete your conclusion in your exercise book.

47
Lesson 5
  • Measuring how much energy.
  • Do different fuels contain different amounts of
    Energy?

48
Equipment
  • For demonstration only
  • Burning dishes
  • Fuels to burn
  • Fire lighter
  • Meths cotton wool
  • Wooden spills
  • Sawdust
  • Matches
  • Thermometer
  • Timer

49
Objectives
  • To learn about the energy in different fuels.
  • To learn how to calculate how much useful energy
    is released from different fuels.
  • To learn about sustainable and non-sustainable
    fuels.
  • To write a conclusion to an appropriate level.

50
How much energy?
  • Last lesson, you found out which Bunsen flame was
    hottest.
  • How much energy transferred from the gas to the
    water?

ENERGY IN THE GAS Potential energy
ENERGY IN THE WATER Heat energy (thermal)
51
Measurement of Energy
Volume of water
Temperature rise

x
x
ENERGY
4.2
52
Check your learning
  • Self-evaluation

53
Do different fuels contain different amounts of
Energy?
  • You have seen a demonstration of different fuels
    burning.
  •  
  • Use the results from this demonstration to
    discuss what you saw.
  •  
  • Which of the fuels you saw came from sustainable
    sources?
  • Which fuels released the most energy? How do you
    know?
  • Was the test completely fair? Why?

54
Conclusion
  • Check self evaluation
  • Write a clear conclusion based on your
    observations and your scientific understanding.

55
Lesson 6
  • Energy converters

56
Objectives
57
Energy converters
USEFUL ENERGY OUT Movement KINETIC ENERGY
ENERGY IN Chemical energy (petrol) POTENTIAL
ENERGY
WASTED ENERGY OUT Heat Sound THERMAL ENERGY
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