Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 620 · 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) yeast (b) a balloon (c) cooking oil (d) a battery cell
2. 2.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
3. 3.⚖️ 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
4. 4.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) throw the glass (d) do not lick the spoon
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 what we measure? (a) the same three liquids (b) the order of the layers (c) the order of pouring (d) the same glass
6. 6.⚖️ 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 the one thing we change. (a) True (b) False
7. 7.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) turmeric powder (c) honey (d) cooking oil
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) a balloon (d) cooking oil
9. 9.True or false: honey is needed for the density tower. (a) False (b) True
10. 10.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
11. 11.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
12. 12.🧺 Which of these is needed for the density tower? (a) yeast (b) a spoon (c) a battery cell (d) turmeric powder
13. 13.⚖️ 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
14. 14.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) on top of the oil (d) in the water layer
15. 15.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) under the honey (d) in the honey layer
16. 16.⚖️ 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) False (b) True
17. 17.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) spilled oil is slippery (d) oil attracts magnets
18. 18.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) a balloon (d) water with food colour
19. 19.📘 What does “dense” mean? (a) very colourful (b) very hot (c) heavy for its size (d) very thin
20. 20.True or false: a ping-pong ball is less dense than water. (a) False (b) True
21. 21.🧺 Which of these is needed for the density tower? (a) a mirror (b) a tall clear glass (c) turmeric powder (d) a battery cell
22. 22.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) a tall clear glass (d) a mirror
23. 23.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
24. 24.⚖️ 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 what we measure. (a) True (b) False
25. 25.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the stickiest (d) it is the densest
28. 28.⚖️ 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) False (b) True
29. 29.🧺 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) honey (d) a battery cell
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a spoon (d) a magnet
31. 31.⚖️ 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 the layers (b) the same glass (c) the order of pouring
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) a coin (d) air
34. 34.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
35. 35.True or false: honey is not needed for the density tower. (a) False (b) True
36. 36.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
37. 37.True or false: water with food colour is needed for the density tower. (a) True (b) False
38. 38.⚖️ 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 measure it (b) we keep it the same (c) we change it
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) cooking oil (d) a mirror
40. 40.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they become solid (d) they turn to honey

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