Starter quiz
- Which of the following do not photosynthesise?
- oak trees
- humans ✓
- grass
- algae
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- What is the molecular formula of carbon dioxide?
- CO³
- CO₃
- CO²
- CO₂ ✓
- Co₂
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- What three things are required for combustion?
- fuel, carbon dioxide and water
- fuel, heat and water
- fuel, heat and oxygen ✓
- carbon dioxide, oxygen and water
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- Which of the following is the correct equation for respiration?
- carbon dioxide + glucose → water + oxygen
- oxygen + glucose → carbon dioxide + water ✓
- carbon dioxide + water → oxygen + glucose
- oxygen + water → carbon dioxide + glucose
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- What key term describes the break down of dead and decaying matter?
- 'decomposition' ✓
Look at the image of a food chain. Where do carbon atoms in the plant get transferred to?- Carbon atoms are transferred to the caterpillar when it eats the plant. ✓
- Carbon atoms are transferred from the caterpillar to the plant when it is eaten.
- Carbon atoms from the plant pass to the soil when it dies. ✓
- Carbon atoms get broken up when the plant is eaten.
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Exit quiz
- What is the process where energy from sunlight is used to convert carbon dioxide and water into glucose and oxygen?
- 'photosynthesis' ✓
- Which of the following increases the amount of carbon dioxide in the atmosphere?
- photosynthesis
- combustion ✓
- respiration ✓
- animals eating plants
- dissolving in the oceans
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- What effect does decomposition have on the levels of carbon dioxide in the atmosphere?
- increases the levels of carbon dioxide in the atmosphere ✓
- decreases the levels of carbon dioxide in the atmosphere
- has no effect on the levels of carbon dioxide in the atmosphere
-
- Which of the following are ways that carbon dioxide is removed from the atmosphere?
- respiration
- photosynthesis ✓
- decomposition
- dissolving in the oceans ✓
- combustion of fossil fuels
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- Which of the following is not a way that carbon is transferred between different carbon reservoirs.
- Carbon is transferred to animals when they eat plants.
- When animals and plants die carbon is transferred to the soil.
- Decomposition removes carbon dioxide from the atmosphere. ✓
- Combustion releases carbon dioxide into the atmosphere.
- Carbon dioxide dissolved in the oceans reacts to form carbonate compounds.
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- Rearrange the statements to explain one way that carbon dioxide in the oceans can end up in plants.
- 1⇔The carbon dioxide reacts to form carbonate compouds.
- 2⇔The carbonate compounds are used to make shells and bones.
- 3⇔When the organisms die the shells and bones drop to the bottom of the ocean.
- 4⇔Layers of mud covers the shells and bones.
- 5⇔Over millions of years fossil fuels form.
- 6⇔The fossil fuels are burnt releasing carbon dioxide into the atmosphere.
- 7⇔Plants remove carbon dioxide from the atmosphere when they photosynthesise.
Worksheet
Presentation
Video
Lesson Details
Key learning points
- Combustion increases the amount of carbon dioxide in the atmosphere.
- Respiration of living things increases the amount of carbon dioxide in the atmosphere.
- Decomposition of dead plants and animals increases the amount of carbon dioxide in the atmosphere.
- Photosynthesis by plants reduces the amount of carbon dioxide in the atmosphere.
- Carbon dioxide can dissolve in the oceans.
Common misconception
Carbon is only transferred through respiration, combustion and photosynthesis.
Use the carbon cycle to show how carbon moves between different carbon reservoirs.
Keywords
Carbon cycle - The carbon cycle shows how carbon moves between different carbon reservoirs including the atmosphere, oceans and land on Earth.
Photosynthesis - Photosynthesis is a process where energy from sunlight is used to convert carbon dioxide and water into glucose and oxygen.
Respiration - Cellular respiration is a chemical process that uses glucose from food as a fuel to provide energy for life processes.
Combustion - An exothermic reaction in which fuel burns in the presence of oxygen to release energy, often producing carbon dioxide and water as by-products
Decomposition - Decomposition is the break down of dead and decaying matter.