Salt Water vs Fresh Water
Describe and graph the amounts of salt water and fresh water in various reservoirs to provide evidence about the distribution of water on Earth
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1858 concepts · 9 subjects
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Salt Water vs Fresh Water means most of Earth’s water is salt water in oceans, and only a little is fresh—shown with a simple graph of reservoirs. We will compare amounts, draw bars, then check a fresh reservoir idea.
Spend about 14 minutes comparing salt vs fresh amounts and graphing them, then checking one reservoir fact.
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Practice this concept
Start practiceSalt water vs fresh water practice
Compare and graph salt vs fresh water amounts on Earth.
Free · no login · no ads · Practice answers and completion are not saved. Parent observation remains the lesson record.
Learning resources
Extra practice links — they do not replace Gakuva’s teaching approach.
NOAA Ocean Service · Practice link — not the full lesson
Why should we care about the ocean?
Before you open · source notes
Why should we care about the ocean? supports Salt Water vs Fresh Water. An adult previews and guides; this is a learning page, not a scored quiz.
Free educational page, no sign-in required for the tested path.
Before you openAsk the learner one fact they learned and one question they still have.
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Source, access and review notes
Public NOAA Ocean Service page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
NOAA Ocean Service. “Why should we care about the ocean?.” External page; Gakuva does not copy, host, embed, or redistribute materials.
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Check understanding
- 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
“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?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Earth's Systems
- Age range
- Ages 9–11
Standards