Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 567 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) yeast (d) cooking oil
2. 2.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) yeast (d) water with food colour
3. 3.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) under the honey (d) in the water layer
4. 4.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they mix for ever (c) they turn to honey (d) they separate again
5. 5.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is sticky (d) oil is less dense
6. 6.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
7. 7.⚖️ 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 the one thing we change. (a) True (b) False
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a tall clear glass (d) turmeric powder
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) honey (d) a battery cell
11. 11.True or false: a coin is denser than water. (a) False (b) True
12. 12.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) a tall clear glass (d) a battery cell
13. 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) water with food colour (d) a magnet
14. 14.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) a spoon (d) a balloon
15. 15.🍯 Which of these is denser than water? (a) very salty water (b) cooking oil (c) a ping-pong ball (d) air
16. 16.🍯 Which of these is less dense than water? (a) very salty water (b) a glass marble (c) a cork (d) a pebble
17. 17.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) an ice cube (d) a pebble
18. 18.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) taste each layer (d) do not lick the spoon
19. 19.⚖️ 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 change it (b) we keep it the same (c) we measure it
20. 20.True or false: a pebble is denser than water. (a) True (b) False
21. 21.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
22. 22.True or false: cooking oil is needed for the density tower. (a) True (b) False
23. 23.⚖️ 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 three liquids (b) how much of each liquid (c) the order of pouring (d) the same glass
24. 24.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
25. 25.True or false: a battery cell is needed for the density tower. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a ping-pong ball (b) air (c) an ice cube (d) a glass marble
27. 27.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is yellow (c) it is the coldest (d) it is the stickiest
28. 28.🧺 Which of these is needed for the density tower? (a) a mirror (b) turmeric powder (c) cooking oil (d) yeast
29. 29.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the water layer (d) in the oil layer
33. 33.True or false: water with food colour is needed for the density tower. (a) True (b) False
34. 34.True or false: a cork is less dense than water. (a) True (b) False
35. 35.True or false: an ice cube is denser than water. (a) False (b) True
36. 36.True or false: a coin is less dense than water. (a) True (b) False
37. 37.True or false: honey is needed for the density tower. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) an ice cube (d) a cork
39. 39.⚖️ 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 order of the layers (b) the order of pouring (c) how much of each liquid (d) the same glass
40. 40.📘 What does “dense” mean? (a) very thin (b) very colourful (c) very hot (d) heavy for its size

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