Science>Year 10>Unit 4>Checkpoint 2

Checkpoint 2

This checkpoint tests Block B, Impacts and Responses: the impacts of climate change on oceans, sea level and biodiversity, mitigation and renewable energy, adaptation strategies including cultural burning, and Australia's role in international climate action.

SC5-ES-02Lessons 5-810 MC3 Short AnswerCheckpoint 2 of 3
CP2

Coverage

This checkpoint assesses your understanding of the impacts of climate change and the ways we respond to them.

Lesson 5

Impacts of climate change: ocean warming, sea-level rise and threats to biodiversity.

Lesson 6

Mitigation and renewable energy: cutting emissions with solar, wind and storage.

Lesson 7

Adaptation strategies, including Aboriginal cultural burning.

Lesson 8

Australia's role in international climate action and the Paris Agreement.

Checkpoint Standard Strong answers use precise scientific language and connect evidence to conclusions.
MC Score
0 / 10
SA Score
0 / 12
Q

Test Your Understanding

UnderstandBand 3

1. The oceans have absorbed roughly what share of the extra heat trapped by greenhouse gases?

AAbout 10%
BAbout 90%
CAbout 50%
DNone of it
UnderstandBand 3

2. Coral bleaching happens when:

ACorals are eaten by predators
BThe ocean becomes too cold
CWarmer water stresses corals so they expel their symbiotic algae and turn white
DToo much rain falls on the reef
UnderstandBand 4

3. Ocean acidification is caused by:

ACO2 dissolving in seawater to form carbonic acid, lowering the pH
BSalt being added to the ocean
COil spills
DRising sea temperatures alone
UnderstandBand 4

4. The two main contributors to current sea-level rise are:

AMore rivers and rainfall
BTides and the Moon
CUnderwater volcanoes
DThermal expansion of warming seawater and melting land-based ice
UnderstandBand 3

5. Which of the following is a renewable energy source?

ACoal
BWind
CNatural gas
DPetroleum
ApplyBand 4

6. Pumped hydro and large batteries are important for a renewable grid because they:

ABurn fuel more cleanly
BRemove CO2 from the air
CStore energy so that variable supply from solar and wind can meet demand at any time
DMake solar panels cheaper
ApplyBand 4

7. Building a sea wall to protect a coastal town from rising seas is an example of:

AAdaptation
BMitigation
CRecycling
DRenewable energy
UnderstandBand 4

8. Aboriginal cultural (cool) burning is best described as:

AA hot, uncontrolled fire that clears all vegetation
BA practice no longer used today
CA way of generating electricity
DA low-intensity, seasonal fire that reduces fuel loads and supports biodiversity
UnderstandBand 4

9. A key aim of the Paris Agreement is to:

ABan all fossil fuels immediately worldwide
BLimit global warming to well below 2°C, and pursue efforts to keep it near 1.5°C
CIncrease coal exports
DStop all scientific research on climate
AnalyseBand 5

10. Which statement best describes Australia's emissions profile?

AAustralia has almost no emissions
BAustralia only imports fossil fuels
CAustralia has high per-capita emissions and is also a major fossil-fuel exporter
DAustralia has already reached net zero

Short Answer Questions

UnderstandBand 3

11. Describe TWO impacts of climate change on Australian ecosystems. Include data or a specific example for each. 4 MARKS

Answer in your book.
ApplyBand 4

12. Distinguish between mitigation and adaptation. Give one example of each and explain why both are needed. 4 MARKS

Answer in your book.
AnalyseBand 5

13. Explain how Aboriginal cultural (cool) burning works as both an adaptation strategy and a form of sustainable land management, and why it is valued today. 4 MARKS

Answer in your book.

Review & Reflect

✓ I can explain...

  • Ocean warming and coral bleaching
  • Sea-level rise and acidification
  • The difference between mitigation and adaptation
  • Renewable energy and storage
  • Cultural burning as land management

⚠ I need to review...

  • The data behind each impact
  • How a circular economy reduces emissions
  • Australia's international commitments
  • How carbon credits work
  • Nature-based solutions like blue carbon

Mark checkpoint as complete

Tick when you have finished all questions and reviewed your answers.