New
New
Year 9

Atmospheric carbon

I can describe how too much carbon dioxide affects Earth’s atmosphere and is leading to global warming.

New
New
Year 9

Atmospheric carbon

I can describe how too much carbon dioxide affects Earth’s atmosphere and is leading to global warming.

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Lesson details

Key learning points

  1. When fuels containing carbon are burned, it is common for carbon dioxide to be made.
  2. Carbon dioxide is a compound with molecules that each contain one carbon atom and two oxygen atoms.
  3. Less than 1% of the Earth’s atmosphere is carbon dioxide.
  4. Carbon dioxide is a greenhouse gas.
  5. In the atmosphere, some gases are greenhouse gases and have properties that enable its temperature to rise over time.

Keywords

  • Carbon dioxide - Carbon dioxide is a compound with molecules that each contain one carbon atom and two oxygen atoms.

  • Atmosphere - The atmosphere is a layer of gases that surround a planet. It may contain small amounts of solid and liquid particles.

  • Greenhouse gas - Greenhouse gases absorb infrared (IR) radiation emitted from Earth.

  • Global warming - An increase in Earth’s surface temperature is known as global warming.

Common misconception

Burning hydrocarbons results in harmless products.

Teach about carbon dioxide being a greenhouse gas, and the impact on global temperatures.

Demonstrate the products of combustion.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Which of the following are examples of fossil fuels?
Correct answer: coal
Correct answer: oil
solar
Correct answer: natural gas
nuclear fuels
Q2.
When do humans burn fossil fuels?
Correct answer: to cook food
to respire
Correct answer: in vehicles such as cars and lorries
Correct answer: to generate electricity
Q3.
What scientific name do we give to substances made from only one type of atom?
Correct Answer: element, an element
Q4.
Match the molecules with the correct molecular formula.
Correct Answer:carbon dioxide,CO₂

CO₂

Correct Answer:water,H₂O

H₂O

Correct Answer:oxygen,O₂

O₂

Q5.
Apart from a fuel, what else is needed for combustion?
oxygen
water
oxygen and water
heat
Correct answer: oxygen and heat
Q6.
Match the following key terms with the correct definitions.
Correct Answer:atmosphere,a layer of gases that surround a planet

a layer of gases that surround a planet

Correct Answer:greenhouse gases,absorb infrared (IR) radiation and trap ‘heat’ in the atmosphere

absorb infrared (IR) radiation and trap ‘heat’ in the atmosphere

Correct Answer:global warming,an increase in Earth’s surface temperature

an increase in Earth’s surface temperature

Correct Answer:hydrocarbon,molecules made of hydrogen and carbon atoms only

molecules made of hydrogen and carbon atoms only

6 Questions

Q1.
When a fuel containing carbon is burned which of the following may be produced?
oxygen
Correct answer: carbon dioxide
magnesium oxide
zinc
Q2.
Carbon dioxide is a compound containing ...
two carbon atoms only.
two carbon atoms and one oxygen atom.
Correct answer: one carbon atom and two oxygen atoms.
two oxygen atoms only.
Q3.
What is the percentage of carbon dioxide in the atmosphere?
more than 1%
about 1%
Correct answer: less than 1%
Q4.
What do well call the gases that absorb infrared (IR) radiation emitted from Earth, and trap ‘heat’ in the atmosphere?
Correct Answer: greenhouse gases, greenhouse, greenhouse
Q5.
What is global warming?
an increase in sunny days worldwide
a decrease in sunny days worldwide
Correct answer: an increase in Earth’s surface temperature
a decrease in Earth's surface temperature
Q6.
Which gas is needed for fuel to combust?
carbon dioxide
water vapour
Correct answer: oxygen
nitrogen