ScienceWeather & ClimateAges 7–9

Thunder & Lightning

Know that thunder and lightning happen during thunderstorms: lightning is a giant spark of electricity that forms in clouds, thunder is the sound the lightning makes, and we see lightning before hearing thunder because light travels faster than sound

Lesson

Set out your lesson

Connect lightning, rapidly heated air and thunder, and explain why the flash is seen first.

Before teaching

Activity

Can discuss the supplied example in an accessible mode; adapt directions without supplying the target answer.

Policy

Check the learner can follow the model with support before moving on. Source prerequisite ordering is not learner mastery; return to prerequisite work when needed.

Printer, credit, and teaching notes

Use an imagined storm only. Never go outside to observe lightning; if thunder is heard, follow adult safety guidance and move to safe shelter. Open S first, G together, then T alone; put S and G away before T. Keys stay adult-only. No purchase or printing is required; an unavailable physical observation remains pending, not passed.

Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.

Next: Show

Adult extras

What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

partial: Know that thunder and lightning happen during thunderstorms: lightning is a giant spark of electricity that forms in clouds, thunder is the sound the lightning makes, and we see lightning before hearing thunder because light travels faster than sound
Conceptual explanation only, no real-storm observation or distance measurement.
partial: Describe lightning as a large electrical discharge in clouds
Conceptual explanation only, no real-storm observation or distance measurement.
partial: Explain that thunder is the sound caused by lightning
Conceptual explanation only, no real-storm observation or distance measurement.
partial: State that we see lightning before hearing thunder because light travels faster than sound
Conceptual explanation only, no real-storm observation or distance measurement.
partial: During a thunderstorm, can {{name}} explain that lightning is electricity in the clouds, thunder is its sound, and that we see the flash before the boom because light is faster than sound?
Conceptual explanation only, no real-storm observation or distance measurement.

Conceptual explanation only, no real-storm observation or distance measurement.

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Connect lightning, rapidly heated air and thunder, and explain why the flash is seen first.

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Learning resources

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

NASA Climate Kids · Practice link — not the full lesson

Weather and Climate

Open practice(new tab)

Before you open · source notes

Weather and Climate supports Thunder & Lightning. 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 NASA Climate Kids 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.

NASA Climate Kids. “Weather and Climate.” External page; Gakuva does not copy, host, embed, or redistribute materials.

Unknown — link only

Check understanding

Describe lightning as a large electrical discharge in clouds
Explain that thunder is the sound caused by lightning
State that we see lightning before hearing thunder because light travels faster than sound

“During a thunderstorm, can your child explain that lightning is electricity in the clouds, thunder is its sound, and that we see the flash before the boom because light is faster than sound?”

Curriculum record

Type: Conceptual
Subject: Science
Domain: Weather & Climate
Age range: Ages 7–9