Science · Stage 3
Challenge: Science Detective Cases
Two clues aren't enough — a real case needs three, and all of them must agree!
✦ Science📘 Stage 3 · S3⏱ ~9 min🧒 Ages 7–8★ Free to start
work out a mystery from three clues — each clue narrows the suspects until only one answer is left, and the answer must fit all three.
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Detective Kavi on the Case
Kavi pulls on a detective hat 🕵️ and reads a case card. "Clue 1: it grows. Clue 2: it needs sunlight. Clue 3: it cannot move by itself." Kavi taps a wing. "Clue 1 alone? Lots of things grow! But each clue crosses out more suspects — and the answer has to agree with all three. Let's crack the case!"
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What your child will learn
1How a detective cracks a caseA case is a riddle made of clues. Tap each idea to learn it.
2Why two clues aren't enoughWatch how the third clue cracks the case. Tap each card.
3One clue, two groupsA clue splits the suspects. Clue: it lives in water. Tap the right box for each.
4Solve the detective casesRead all three clues, then pick the answer. Tap Next test → for more!
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A peek inside
Crack the case: Clue 1: it grows. Clue 2: it needs sunlight. Clue 3: it cannot move by itself. What is it?
Lots of things grow, so clue 1 alone isn't enough. Needing sunlight to make food crosses out animals. Cannot move by itself crosses out anything that walks, swims, or flies. All three agree on one thing.
Try this at home: Clue 1: it grows. Clue 2: it needs sunlight. Clue 3: it cannot move by itself. What is it?
Ready to play and learn?
Start the free interactive lesson, or print the handout for screen-free play.
Part of Science · Stage 3 · S3 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.