Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 86 · 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.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) yeast (d) a tall clear glass
2. 2.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) water with food colour (d) a battery cell
4. 4.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the densest (d) it is the coldest
5. 5.⚖️ 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) how much of each liquid (b) the order of the layers (c) the order of pouring
6. 6.True or false: water with food colour is not needed for the density tower. (a) True (b) False
7. 7.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
8. 8.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) honey (d) a glass marble
9. 9.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they become solid (d) they turn to honey
10. 10.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) throw the glass (d) pour it on the floor
11. 11.⚖️ 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) False (b) True
12. 12.True or false: honey is not needed for the density tower. (a) True (b) False
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) honey (d) a mirror
15. 15.🧺 Which of these is not needed for the density tower? (a) honey (b) a battery cell (c) cooking oil (d) a spoon
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) turmeric powder (c) water with food colour (d) a spoon
17. 17.⚖️ 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 order of pouring (b) how much of each liquid (c) the same glass (d) the same three liquids
18. 18.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) very salty water (d) a cork
19. 19.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) turmeric powder (c) a tall clear glass (d) water with food colour
20. 20.⚖️ 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 measure it (b) we keep it the same (c) we change it
21. 21.⚖️ 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) how much of each liquid (b) the order of the layers (c) the order of pouring (d) the same glass
22. 22.📘 What does “dense” mean? (a) very hot (b) very thin (c) very colourful (d) heavy for its size
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 kept the same? (a) the same three liquids (b) the order of the layers (c) the order of pouring
24. 24.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) honey (c) the spoon (d) cooking oil
25. 25.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) on top of the oil (d) under the honey
26. 26.⚖️ 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) False (b) True
27. 27.True or false: an ice cube is denser than water. (a) True (b) False
28. 28.True or false: very salty water is less dense than water. (a) False (b) True
29. 29.True or false: very salty water is denser than water. (a) True (b) False
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) a spoon (d) yeast
31. 31.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
32. 32.True or false: cooking oil is needed for the density tower. (a) True (b) False
33. 33.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is less dense (d) oil is sticky
35. 35.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
36. 36.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a magnet (c) turmeric powder (d) a mirror
37. 37.🍯 Which of these is less dense than water? (a) a coin (b) a glass marble (c) a ping-pong ball (d) honey
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a battery cell (c) cooking oil (d) a spoon
39. 39.🍯 Which of these is denser than water? (a) honey (b) cooking oil (c) a ping-pong ball (d) a cork
40. 40.⚖️ 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

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