Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 894 · 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) a spoon (b) water with food colour (c) yeast (d) cooking oil
2. 2.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is heavier (d) oil is sticky
3. 3.🧺 Do we need honey for the density tower? (a) needed (b) not needed
4. 4.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
5. 5.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) a magnet (d) honey
6. 6.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
7. 7.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil makes it rain (d) oil attracts magnets
8. 8.🍯 Which of these is less dense than water? (a) a coin (b) a ping-pong ball (c) very salty water (d) a glass marble
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 “how much of each liquid”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.⚖️ 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 pouring (b) the order of the layers (c) the same three liquids
11. 11.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🔍 Which is the odd one out? (a) a coin (b) honey (c) very salty water (d) an ice cube
13. 13.📘 What does “dense” mean? (a) very thin (b) very hot (c) very colourful (d) heavy for its size
14. 14.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
15. 15.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) do not lick the spoon (d) throw the glass
16. 16.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they mix for ever (d) they separate again
17. 17.True or false: a pebble is less dense than water. (a) True (b) False
18. 18.🧺 Which of these is needed for the density tower? (a) a battery cell (b) yeast (c) cooking oil (d) a magnet
19. 19.🔍 Which is the odd one out? (a) air (b) cooking oil (c) honey (d) a ping-pong ball
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 same three liquids”? (a) we measure it (b) we change it (c) we keep it the same
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) the same glass (b) how much of each liquid (c) the order of the layers (d) the same three liquids
22. 22.⚖️ 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
23. 23.⚖️ 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 what we measure. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) cooking oil (b) very salty water (c) a ping-pong ball (d) an ice cube
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a mirror (c) honey (d) cooking oil
26. 26.True or false: turmeric powder is needed for the density tower. (a) True (b) False
27. 27.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.⚖️ 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) the same three liquids (d) the order of pouring
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a balloon (c) a tall clear glass (d) a spoon
30. 30.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
31. 31.🔍 Which is the odd one out? (a) a coin (b) air (c) a pebble (d) a glass marble
32. 32.True or false: a balloon is needed for the density tower. (a) True (b) False
33. 33.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
34. 34.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) at the very bottom (c) in the water layer (d) on top of the oil
35. 35.🧺 Which of these is needed for the density tower? (a) a spoon (b) a magnet (c) turmeric powder (d) a battery cell
36. 36.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
37. 37.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) air (d) cooking oil
38. 38.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.True or false: a cork is less dense than water. (a) False (b) True
40. 40.True or false: air is less dense than water. (a) False (b) True

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