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An Inconvenient Truth: Greenhouse Effect

Age 11-14 (KS3)
Age 14-16 (KS4 / GCSE)

A set of resources covering the carbon cycle, the greenhouse effect and global warming. Also relevant to 'how science works'. Includes an animated presentation (25 slides) and a question sheet which are designed to be used in conjunction with the "Inconvenient Truth" DVD. There are also instructions for two experiments and an investigation.

Further information: http://uk.youtube.com/watch?v=fEsBVWG...



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Published 19 Nov 2008

Contributed by Claire Brown — Experienced contributor

2 people are following this contributor Average rating: 1 2 3 4 5

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6 reviews

Anonymous

We adapted this for an assembly with Year 7. Very useful

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nicola-jo randle - Experienced contributor

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Anonymous

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Abigail Laing - Admin

An excellent set of resources to use with the Inconvenient Truth DVD - a wealth of topical, well-presented material here so well worth a few credits.

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Briar Manning - Member

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Simon Perkin - Experienced contributor

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Extracts from this resource

Carbon cycle and the greenhouse effect

1An Inconvenient Truthhttp://teachable.net/res.asp?r=1986The carbon cycle and global warming2The carbon cycleCarbon is often called the building block of life as it is present in all the organic molecules needed to build living organisms
The carbon cycle is a way to show the constant recycling of carbon which takes place
What you really need to remember is that plants take Carbon Dioxide out of the atmosphere and almost everything else puts it back!3Decreasing Carbon Dioxide What is the word equation for photosynthesis?

Click here for a hintClick here for answerSo what happens to the Carbon Dioxide the plants take in?
It is used to make glucose which can then be converted into other carbohydrates fats and proteins in the plant.
4Increasing Carbon DioxideWhich processes increase the amount of Carbon Dioxide?The amount of Carbon Dioxide in the atmosphere is increased by respiration and combustion in particular burning wood and fossil fuels.5The carbon cyclePlants are eaten by animalsDeathDetritusDeathFossilisationFossil fuelsCombustion of

How does a greenhouse affect ice

How does a greenhouse affect ice?
Aim: To investigate whether a greenhouse (a beaker with cling film on top) affects the speed at which ice melts
Hypothesis:
Apparatus:
Two blocks of ice of equal size
Two beakers
Cling film
Black card
Two lamps with ordinary bulbs
Stop clocks
Ruler
Method
Place a block of ice in each beaker
Cover one beaker with cling film to represent a greenhouse
Place both beakers on black card
Shine a lamp on each beaker make sure the lamps are equal distances from the beakers
Time how long it takes each block of ice to melt
Results
Time taken for open air ice:
Time taken for greenhouse ice:
Questions:
What conclusions can you draw from your results?
Did your results support your hypothesis?
Why did the lamps need to be the same distance from the beakers?
Why did the blocks of ice have to be the same size?
Thinking about global warming how could you improve this experiment? What other evidence would you collect? Describe how you could do this.
http://teachable.net/res.asp?r=1986 this.
http://teachable.net/res.asp?r=1986

Investigating the melting of ice

Investigating the melting of ice
You are going to investigate which factors affect the rate at which ice melts.
Decide on your independent variable. For example air temperature water temperature amount of ice whether the ice is floating in water or held in a container. Or you can choose to investigate a different factor.
Independent Variable:
Decide how you are going to measure the rate of melting. You could weigh the ice periodically or time how long it takes to completely melt.
I am going to measure:
Units will be:
Write down the aim of your investigation and think of a hypothesis (for example the aim might be to investigate how the size of an ice cube affects the rate of melting and the hypothesis might be that larger cubes will take longer to melt)
Aim:
Hypothesis:
Now write down what apparatus you will need and what your method is going to be before designing a results table.
Apparatus:
Method:
Results:

Present your results in

What effect does carbon dioxide have on temperature

What effect does carbon dioxide have on temperature?
Aim
To investigate the effect adding carbon dioxide has on the temperature in a jam jar
Hypothesis:
Apparatus
A desk lamp with a normal (not energy saving or fluorescent) bulb in
Two jam jars with lids
Some vinegar
Some bicarbonate of soda
Two thermometers small enough to go into the jam jars
Method
Pour 2cm3 of vinegar into each jam jar. Add a thermometer to each jar and take the initial temperature
Close the jars and place underneath the lamp for 10 minutes.
Write down the temperature in each jar in the results section
Next add a small (less than a teaspoon) amount of bicarbonate of soda to jam jar 1 and quickly close the jar again [when bicarbonate of soda and vinegar are mixed they produce carbon dioxide]
Place both jars under the lamp for ten more minutes
Write down the temperature in each jar in the results section
Write down your conclusions
Results
Jar
Initial

The greenhouse effect and global warming

The greenhouse effect and global warming
Thinking back to the DVD and the section on Professor Revelle what did he decide to measure?
Where did he carry out these measurements? Why?
Why does the graph fluctuate each year instead of rising smoothly?
Fill in the blanks:
The gases which cause the greenhouse effect are _________ and _________. Problems occur when the amounts of these gases ________ because then the earth gets too _____. Increases in _________can be caused by burning fossil fuels such as ____________. Increases in ________ come from increased numbers of cows and rice fields.
The gases in the earth s _____________ act like the glass panels and prevent ________ from escaping. This means that the earth ___________ up. A rise of only a few degrees can change the earth s climate or cause sea levels to _______.
Mosquitoes have been able to colonise areas which were previously too cold why do you think this is

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