Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 431 · 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? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
3. 3.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) a cork (d) a pebble
4. 4.True or false: an ice cube is denser than water. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a cork (d) very salty water
6. 6.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) honey (d) turmeric powder
7. 7.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
8. 8.🛟 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
9. 9.🍯 Which of these is denser than water? (a) a cork (b) a pebble (c) a ping-pong ball (d) an ice cube
10. 10.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) turmeric powder (d) a tall clear glass
11. 11.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🍯 Which of these is denser than water? (a) honey (b) a cork (c) air (d) cooking oil
13. 13.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a balloon (d) cooking oil
15. 15.🍯 Which of these is less dense than water? (a) honey (b) air (c) a coin (d) a glass marble
16. 16.🫗 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
17. 17.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.⚖️ 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
19. 19.🔮 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) on top of the oil (d) at the very bottom
20. 20.🔍 Which is the odd one out? (a) cooking oil (b) a glass marble (c) very salty water (d) honey
21. 21.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very colourful (d) very thin
22. 22.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a glass marble (d) honey
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 glass (b) the order of the layers (c) the order of pouring
24. 24.True or false: a spoon is not needed for the density tower. (a) False (b) True
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) a tall clear glass (d) water with food colour
26. 26.🧺 Which of these is needed for the density tower? (a) a battery cell (b) water with food colour (c) a balloon (d) a magnet
27. 27.🔍 Which is the odd one out? (a) cooking oil (b) a ping-pong ball (c) an ice cube (d) a glass marble
28. 28.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
29. 29.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
30. 30.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
31. 31.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
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 glass is what we measure. (a) False (b) True
33. 33.🧺 Do we need honey for the density tower? (a) needed (b) not needed
34. 34.⚖️ 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) True (b) False
35. 35.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
36. 36.True or false: a magnet is not needed for the density tower. (a) False (b) True
37. 37.🍯 Which of these is less dense than water? (a) honey (b) very salty water (c) an ice cube (d) a pebble
38. 38.True or false: air is denser than water. (a) True (b) False
39. 39.🔮 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
40. 40.⚖️ 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 same glass (c) the order of the layers (d) the order of pouring

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