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ScienceOcean LifeAges 5–7

What Is the Ocean?

Know that oceans are huge bodies of salt water that cover most of Earth's surface, and that the ocean is home to an enormous number of living things

Lesson

Set out your lesson

“What Is the Ocean? means knowing oceans are huge salt-water bodies covering most of Earth and home to many living things. We will practise once together, then check a fresh example.”

Bring to the table

  • Globe or world outline
  • Salt-water vs fresh-water cups (tiny taste optional)
  • Ocean life picture
Extra for the adult

Worked example. Oceans are huge salt-water bodies. They cover most of Earth and hold many living things.

Optional challenge. For What Is the Ocean?, add “covers most of Earth’s surface.”

What to notice. Keep one parent note: salt water; living things; support used. This session samples ocean basics, not mastery of oceanography.

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Teaching approaches

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1 approach

Selected Default Gakuva

What Is the Ocean? means knowing oceans are huge salt-water bodies covering most of Earth and home to many living things. We will practise once together, then check a fresh example.

Spend about 12 minutes finding ocean on a map, saying salt water + many living things, then checking a fresh fact.

Family records and proof options

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Practice this concept

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Gakuva activity

What Is the Ocean? practice

Choose ocean basics.

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?

Open practice (new tab)
Before you open · source notes

Why should we care about the ocean? supports What Is the Ocean?. 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 open

Ask the learner one fact they learned and one question they still have.

Opening this link does not save learning or assess mastery.

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.

Unknown — link only

Check understanding

  • State that oceans cover more of Earth than land does
  • Explain that ocean water is salty, unlike the fresh water in rivers and lakes
  • Describe the ocean as home to a huge variety of living things
“If you asked your child to point to the oceans on a globe, could they show you and explain that most of our planet is covered by salty water where millions of creatures live?”

Curriculum record

Type
Conceptual
Subject
Science
Domain
Ocean Life
Age range
Ages 5–7