7 questions · Four answers, and only one is true. Can you spot it?
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Question 1 of 7
How does a mirror work?
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It shows whatever comes along, including things it has never seen before.
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In a dark room a mirror shows nothing.
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Step aside and your reflection leaves instantly.
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It keeps the picture in order; a rough surface bounces light too, but scatters it, so you see no reflection.
Show the answer
- A It shows whatever comes along, including things it has never seen before.
- B In a dark room a mirror shows nothing.
- C Step aside and your reflection leaves instantly.
- D It keeps the picture in order; a rough surface bounces light too, but scatters it, so you see no reflection.
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Question 2 of 7
Why do we hear echoes?
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Echoes answer in empty valleys and caves where nobody is.
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You would hear everything twice everywhere, which you do not.
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Nothing is stuck — it has travelled there and back.
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It comes back a moment later, and that wait is what makes it a separate sound instead of your voice.
Show the answer
- A Echoes answer in empty valleys and caves where nobody is.
- B You would hear everything twice everywhere, which you do not.
- C Nothing is stuck — it has travelled there and back.
- D It comes back a moment later, and that wait is what makes it a separate sound instead of your voice.
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Question 3 of 7
What makes music?
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Something shakes fast for a high note, slowly for a low one — a string, a drum skin, a column of air.
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An instrument makes sound; the pattern makes it music.
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A slammed door is loud, and it is not music.
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A drum and a flute make music with no words at all.
Show the answer
- A Something shakes fast for a high note, slowly for a low one — a string, a drum skin, a column of air.
- B An instrument makes sound; the pattern makes it music.
- C A slammed door is loud, and it is not music.
- D A drum and a flute make music with no words at all.
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Question 4 of 7
What is sound?
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It reaches your ears as a wiggle — and with no air, there is no sound at all.
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A slammed door is not alive and is very loud.
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The air stays where it is; only the wiggle travels.
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Light needs no air; sound cannot manage without it.
Show the answer
- A It reaches your ears as a wiggle — and with no air, there is no sound at all.
- B A slammed door is not alive and is very loud.
- C The air stays where it is; only the wiggle travels.
- D Light needs no air; sound cannot manage without it.
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Question 5 of 7
How do we hear sounds?
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The ear passes the sound on and turns it into signals.
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There is a whole little machine in the way.
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Your brain does the understanding, at the very end.
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Three tiny ones — the smallest is tinier than a grain of rice — and then the brain reads the signals.
Show the answer
- A The ear passes the sound on and turns it into signals.
- B There is a whole little machine in the way.
- C Your brain does the understanding, at the very end.
- D Three tiny ones — the smallest is tinier than a grain of rice — and then the brain reads the signals.
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Question 6 of 7
Why do things have colour?
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A leaf has no paint on it at all.
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It soaks up the rest. Something black bounces back almost nothing, which is why it gets so hot.
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Your eyes catch the colour; the thing decides which one.
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The Sun shines the same white light on all of them.
Show the answer
- A A leaf has no paint on it at all.
- B It soaks up the rest. Something black bounces back almost nothing, which is why it gets so hot.
- C Your eyes catch the colour; the thing decides which one.
- D The Sun shines the same white light on all of them.
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Question 7 of 7
What is a shadow?
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Light travels in straight lines, so your outline is left behind unlit.
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Stand in the dark and you make no shadow at all.
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A reflection shows your face; a shadow shows only your outline.
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Nothing is there — it is a shape of missing light.
Show the answer
- A Light travels in straight lines, so your outline is left behind unlit.
- B Stand in the dark and you make no shadow at all.
- C A reflection shows your face; a shadow shows only your outline.
- D Nothing is there — it is a shape of missing light.
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