Grade 8 · Science · Unit 8 of 8
Climate Change: Causes & Action
Find out what causes climate change and what we can do.
What your child practises
Practises human causes of climate change, the carbon cycle, effects on coasts and communities, and the difference between mitigation and adaptation. Ties to the Nova Scotia Grade 8 science outcomes on Climate Change.
Nova Scotia Curriculum learning outcome: Climate Change · Explain causes and effects of climate change and compare ways to respond
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Cutting down large areas of forest adds to climate change because…
- trees produce only fossil fuels
- forests reflect all sunlight into space
- fewer trees are left to take in carbon dioxide
fewer trees are left to take in carbon dioxide
Hint: Growing trees store carbon, so losing forests leaves more carbon dioxide in the air.
Question 2
Which of these is a fossil fuel?
- natural gas
- wind
- tidal power
natural gas
Hint: Natural gas, coal and oil formed from ancient living things.
Question 3
Which of these is a renewable energy source?
- coal
- wind
- oil
wind
Hint: Wind keeps blowing, so it will not run out.
Question 4
Tidal power, such as at the Bay of Fundy, makes electricity from…
- burning natural gas
- burning coal
- the movement of tides
the movement of tides
Hint: Moving water turns a turbine, and the tides come twice a day.
Question 5
Burning fossil fuels such as coal, oil and natural gas releases…
- extra oxygen
- pure nitrogen
- carbon dioxide
carbon dioxide
Hint: The carbon stored in fossil fuels goes into the air as carbon dioxide when it burns.
Question 6
Which question best helps judge a climate claim in a news story?
- How many people shared it?
- Where did the evidence come from and who collected it?
- How exciting is the headline?
Where did the evidence come from and who collected it?
Hint: Reliable claims rest on evidence from trustworthy sources.