Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 920 · 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.⚖️ 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
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 change it (b) we measure it (c) we keep it the same
3. 3.⚖️ 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 same three liquids (b) the order of pouring (c) the order of the layers
4. 4.🍯 Which of these is denser than water? (a) a coin (b) a ping-pong ball (c) cooking oil (d) air
5. 5.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
6. 6.True or false: a magnet is needed for the density tower. (a) True (b) False
7. 7.🧺 Which of these is needed for the density tower? (a) a mirror (b) turmeric powder (c) a battery cell (d) water with food colour
8. 8.🍯 Which of these is less dense than water? (a) a coin (b) air (c) honey (d) very salty water
9. 9.True or false: cooking oil is needed for the density tower. (a) True (b) False
10. 10.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) throw the glass (d) taste each layer
11. 11.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is the coldest (d) it is yellow
12. 12.⚖️ 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) the same glass (b) the order of the layers (c) how much of each liquid (d) the order of pouring
13. 13.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very hot (d) very thin
14. 14.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
15. 15.🍯 Which of these is denser than water? (a) very salty water (b) an ice cube (c) a ping-pong ball (d) air
16. 16.True or false: a glass marble is less dense than water. (a) True (b) False
17. 17.⚖️ 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 glass is what we measure. (a) True (b) False
18. 18.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is less dense (d) oil is hot
19. 19.True or false: an ice cube is denser than water. (a) False (b) True
20. 20.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) at the very bottom (d) in the oil layer
21. 21.True or false: yeast is not needed for the density tower. (a) False (b) True
22. 22.⚖️ 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 glass is the one thing we change. (a) False (b) True
23. 23.🧺 Which of these is needed for the density tower? (a) a magnet (b) a spoon (c) turmeric powder (d) a battery cell
24. 24.🔍 Which is the odd one out? (a) a ping-pong ball (b) cooking oil (c) very salty water (d) an ice cube
25. 25.⚖️ 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 “how much of each liquid”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
27. 27.True or false: very salty water is denser than water. (a) True (b) False
28. 28.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
29. 29.True or false: a cork is denser than water. (a) True (b) False
30. 30.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they become solid (d) they mix for ever
31. 31.True or false: honey is less dense than water. (a) True (b) False
32. 32.🧺 Which of these is needed for the density tower? (a) honey (b) yeast (c) a balloon (d) turmeric powder
33. 33.⚖️ 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 pouring”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🍯 Which of these is denser than water? (a) a cork (b) honey (c) an ice cube (d) cooking oil
35. 35.🧺 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) cooking oil
36. 36.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
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: the same three liquids is kept the same. (a) False (b) True
38. 38.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the density tower? (a) a mirror (b) honey (c) a spoon (d) a tall clear glass
40. 40.True or false: a pebble is denser than water. (a) False (b) True

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