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ScienceScientific InquiryAges 7–10

Fair testing

Set up simple practical enquiries, comparative tests, and fair tests, understanding the importance of changing only one variable at a time

Lesson

Set out your lesson

Practise the bounded task in Fair testing; see exact limits before inferring broader coverage.

Before teaching

Use this short check, then start teaching.

Activity

Can name a changed variable and measured outcome; no chemicals, heating or prolonged plant care required.

Policy

Exact directed source edges retained; earlier authorship is not learner attainment.

Printer, credit, and teaching notes

Exact directed source edges retained; earlier authorship is not learner attainment.

Materials

  • These supplied stage cards

  • Scrap paper and pencil; oral/pointing response where appropriate

  • Optional short cardboard ramp, stable books for two low heights, light rolled-paper cylinder, ruler/tape and clear floor area; responsible adult checks stability.

Sequence

  • Read readiness and decide on support without treating prerequisite authoring as learner readiness.

  • Open Show first and explain its model.

  • Use Guided Try with support and its separate adult key.

  • Close Show and guided keys before Try, unless this Try is explicitly supported.

  • Reflect on an actual attempt, including help used.

No Printer

Use the supplied screen cards; copying the exact task to paper is optional, not required.

Privacy

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view.

Next: Show

Adult extras
Teaching limits and safe use

These are finite task opportunities, not proof of mastery. Record what was attempted and what support was used.

  • Conditional low-risk ramp comparison, not the source's bean-soil practical. Carrying out remains conditional on actual performance; no predicted result is recorded as observed.

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

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Teaching approaches

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1 approach

Selected Default Gakuva

Practise the bounded task in Fair testing; see exact limits before inferring broader coverage.

Practise the bounded task in Fair testing; see exact limits before inferring broader coverage.

Family records and proof options

Keep a record of your learning

Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.

View learner plans ($12/mo per learner) See sample family archive

Learning resources

Extra practice links — they do not replace Gakuva’s teaching approach.

US EPA · Practice link — not the full lesson

Students

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

Students supports Fair testing. 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 US EPA 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.

US EPA. “Students.” External page; Gakuva does not copy, host, embed, or redistribute materials.

Unknown — link only

Check understanding

  • Explain what makes a test 'fair' (only one variable changes, everything else stays the same)
  • Identify the variable to change, the variable to measure, and the variables to keep the same
  • Set up and carry out a comparative or fair test with support
“If your child wants to find out which soil is best for growing beans, can they set up a fair test where only the soil changes and everything else stays the same?”

Curriculum record

Type
Procedural
Subject
Science
Domain
Scientific Inquiry
Age range
Ages 7–10

Standards

acara-v9:AC9S2I02acara-v9:AC9S2I05acara-v9:AC9S3I02acara-v9:AC9S3I05acara-v9:AC9S4I02uk-nc-2013:KS2L.Sci.WS.1uk-nc-2013:KS2L.Sci.WS.2