Warm-up quiz

Short answers are fine. You can write "I don't know". We are not testing you — we want to see what you naturally think before the unit. We will ask the same kinds of questions at the end.

1. 1

   Question 1 · Invisible pieces

   What do you think stuff is made of that you cannot see?

   Your first thoughts

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2. 2

   Question 2 · Ice melting

   Ice melts into water. Do you think anything is lost? Why?

   Your first thoughts

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3. 3

   Question 3 · Solid, liquid, gas

   How is a solid different from a liquid in everyday words?

   Your first thoughts

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4. 4

   Question 4 · Mixtures

   Fruit salad vs salty water — which looks the same all through? Why?

   Your first thoughts

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5. 5

   Question 5 · Dissolving

   Sugar disappears in water. What do you think happened to it?

   Your first thoughts

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6. 6

   Question 6 · Heating

   What happens to things when you heat them up?

   Your first thoughts

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7. 7

   Question 7 · New substance

   How would you tell if mixing two things made something genuinely new?

   Your first thoughts

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8. 8

   Question 8 · Materials

   Rubber band vs paper clip — which stretches and springs back? Why might that be?

   Your first thoughts

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9. 9

   Question 9 · Your question

   What do you want to find out about matter or mixing?

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10. 10

    Question 10 · Confidence

    How confident are you about matter and reactions right now? What is one thing you think you know? What is one thing you are unsure about?

    Your first thoughts

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