Science · Stage 6

Human Impact and Conservation

Human activity can shrink the variety of life — by clearing forests or polluting rivers — or protect it through conservation. Learn to judge an action by what it does to biodiversity, not by how it looks.

✦ Science📘 Stage 6 · S6⏱ ~10 min🧒 Ages 10–12★ Free to start

I can tell whether a human action, such as a ranger's fence, is an act of conservation or harmful human impact.

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Kavi and the Ranger's Fence

Kavi glides over a wild reserve and spots a new fence along the beach 🏖️. "A fence? Isn't blocking animals a bad thing?" Then the ranger explains: the fence keeps cars and dogs away so the rare turtles can nest in peace 🐢. "Ohh — so the same kind of action can protect life or harm it," hoots Kavi. "To tell conservation from harmful human impact, don't just look — ask whether it helps the variety of life grow, or makes it shrink. Let's investigate!"

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What your child will learn

1What human activity does to the living worldPeople change habitats every day — some ways help the variety of life, some harm it. Tap each idea to learn what it means.

2Conservation or harmful human impact?Every action near a habitat either protects the variety of life or takes it away. Tap the right box for each one.

3Don't judge by how it looksTwo scenes. Tap each to hear what it really does to the variety of life.

4What happens to the variety of life?A habitat is a connected system. Predict what the action does, then tap to check. Tap Next test for more.

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A peek inside

A ranger puts a fence around a patch of beach where rare turtles nest, keeping out cars and dogs. Is the fence an act of conservation, or harmful human impact?

A fence can look like a barrier, so it is tempting to call it harm. But to judge it, ask what it does to the variety of life. Here the fence keeps danger away so the turtles can nest and their numbers grow — it protects a species, so it is conservation.

Try this at home: What does 'biodiversity' mean?

Ready to play and learn?

Start the free interactive lesson, or print the handout for screen-free play.

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Part of Science · Stage 6 · S6 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.