Science Earth's Systems Conceptual 10–11 yrs

Salt Water vs Fresh Water

咸水与淡水

Description

Describe and graph the amounts of salt water and fresh water in various reservoirs to provide evidence about the distribution of water on Earth

Mastery Evidence

✓ State that about 97% of Earth's water is salt water in the oceans
✓ Describe where fresh water is found: glaciers/ice caps, groundwater, rivers, lakes
✓ Create or interpret a graph showing the relative amounts of salt water vs fresh water

Assessment Prompt

Can your child explain that most of Earth's water is salty ocean water, and only a tiny fraction is the fresh water we drink, and show this on a graph?