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.

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.

Common misconception

Burning hydrocarbons results in harmless products.

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

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.

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).

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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