Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 746 · 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? Which of these is what we measure? (a) the same three liquids (b) the order of pouring (c) the order of the layers (d) how much of each liquid
2. 2.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
3. 3.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) in the water layer (d) under the honey
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
6. 6.⚖️ 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 pouring (c) how much of each liquid (d) the same three liquids
7. 7.📘 What does “dense” mean? (a) very colourful (b) very thin (c) heavy for its size (d) very hot
8. 8.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a spoon (c) honey (d) a tall clear glass
9. 9.⚖️ 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
10. 10.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
11. 11.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) throw the glass (d) taste each layer
12. 12.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) an ice cube (d) a pebble
13. 13.True or false: a battery cell is needed for the density tower. (a) True (b) False
14. 14.True or false: a ping-pong ball is less dense than water. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) very salty water (b) a pebble (c) a ping-pong ball (d) a coin
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a spoon (c) a battery cell (d) a tall clear glass
18. 18.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a cork (d) honey
19. 19.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
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 keep it the same (b) we measure it (c) we change it
21. 21.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is hot (d) oil is less dense
22. 22.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) yeast (c) a tall clear glass (d) honey
23. 23.⚖️ 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 keep it the same (b) we measure it (c) we change it
24. 24.⚖️ 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 keep it the same (b) we measure it (c) we change it
25. 25.True or false: honey is not needed for the density tower. (a) True (b) False
26. 26.🧺 Which of these is not needed for the density tower? (a) a mirror (b) cooking oil (c) a tall clear glass (d) a spoon
27. 27.True or false: a pebble is denser than water. (a) True (b) False
28. 28.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they become solid (d) they separate again
29. 29.⚖️ 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
30. 30.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
31. 31.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the densest (d) it is the coldest
32. 32.True or false: a glass marble is less dense than water. (a) False (b) True
33. 33.True or false: turmeric powder is needed for the density tower. (a) False (b) True
34. 34.🧺 Do we need honey for the density tower? (a) needed (b) not needed
35. 35.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
36. 36.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
37. 37.⚖️ 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 change it (b) we measure it (c) we keep it the same
38. 38.🍯 Which of these is less dense than water? (a) air (b) a coin (c) very salty water (d) honey
39. 39.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.True or false: a magnet is needed for the density tower. (a) False (b) True

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