Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 31 · 40 questions

What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.

1. 1.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
2. 2.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they turn to honey (d) they mix for ever
4. 4.🧺 Which of these is needed for the density tower? (a) a mirror (b) turmeric powder (c) a magnet (d) water with food colour
5. 5.True or false: cooking oil is denser than water. (a) True (b) False
6. 6.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of the layers”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) an ice cube (d) a glass marble
8. 8.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
9. 9.True or false: cooking oil is not needed for the density tower. (a) False (b) True
10. 10.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) how much of each liquid (b) the order of the layers (c) the same glass (d) the order of pouring
11. 11.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the same three liquids (c) the order of the layers
12. 12.True or false: very salty water is less dense than water. (a) False (b) True
13. 13.True or false: yeast is not needed for the density tower. (a) True (b) False
14. 14.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
15. 15.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
16. 16.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
17. 17.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
18. 18.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the same glass (b) the order of pouring (c) the order of the layers (d) how much of each liquid
19. 19.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is kept the same. (a) True (b) False
20. 20.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) True (b) False
21. 21.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) one mixed colour (c) the glass gets hot (d) bubbles of gas
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) yeast (c) a spoon (d) cooking oil
23. 23.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of the layers is kept the same. (a) False (b) True
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) a magnet (d) honey
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a balloon (c) water with food colour (d) a spoon
26. 26.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
27. 27.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) in the water layer (c) at the very bottom (d) on top of the oil
28. 28.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
29. 29.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
30. 30.📘 What does “dense” mean? (a) very hot (b) very thin (c) heavy for its size (d) very colourful
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a tall clear glass (d) a battery cell
32. 32.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same three liquids”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a magnet (c) a battery cell (d) yeast
34. 34.True or false: a balloon is not needed for the density tower. (a) True (b) False
35. 35.🧺 Which of these is needed for the density tower? (a) honey (b) a mirror (c) a battery cell (d) a balloon
36. 36.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) honey (d) cooking oil
37. 37.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a tall clear glass (c) honey (d) cooking oil
39. 39.True or false: water with food colour is not needed for the density tower. (a) False (b) True
40. 40.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets

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