Science Polar Regions Conceptual 5–7 yrs

Ice & Snow

冰与雪

Description

Know that water can be solid (ice and snow) or liquid, that snow is made of tiny frozen ice crystals, that icebergs are huge chunks of ice floating in the ocean with most of their bulk hidden underwater, and that ice floats because it is lighter than liquid water

Mastery Evidence

✓ Explain that ice and snow are frozen water (solid) and that water can change between solid and liquid
✓ Describe an iceberg as a huge piece of ice floating in the ocean with most of it hidden below the surface
✓ State that ice floats because frozen water is lighter than liquid water

Assessment Prompt

Does your child know that icebergs are like floating ice mountains with most of the ice hidden under the water — and that the polar regions are covered in ice because it's so cold the water stays frozen?