Earth's Frozen Water
Understand the cryosphere and its role in Earth's water system — the cryosphere is all frozen water on Earth (ice sheets, glaciers, sea ice, permafrost, snow cover); polar ice sheets hold about 69% of Earth's fresh water; if all polar ice melted, sea levels would rise over 65 metres; and the water cycle connects polar ice to the global system through evaporation, precipitation, and meltwater flowing into oceans
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Does your child know that most of Earth's fresh water is actually locked up as ice at the poles — and that if it all melted, the sea would rise over 65 metres, flooding coastal cities worldwide?
Understand the cryosphere and its role in Earth's water system — the cryosphere is all frozen water on Earth (ice sheets, glaciers, sea ice, permafrost, snow cover); polar ice sheets hold about 69% of Earth's fresh water; if all polar ice melted, sea levels would rise over 65 metres; and the water cycle connects polar ice to the global system through evaporation, precipitation, and meltwater flowing into oceans
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Check understanding
- Define the cryosphere as all frozen water on Earth and name its components: ice sheets, glaciers, sea ice, permafrost, snow
- State that polar ice sheets hold approximately 69% of Earth's fresh water
- Explain how polar ice connects to the global water cycle and what would happen if it all melted (65m+ sea level rise)
“Does your child know that most of Earth's fresh water is actually locked up as ice at the poles — and that if it all melted, the sea would rise over 65 metres, flooding coastal cities worldwide?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Polar Regions
- Age range
- Ages 9–11