Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 147 · 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.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
2. 2.🔮 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
3. 3.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) cooking oil (c) coloured water (d) the spoon
4. 4.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
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) how much of each liquid (b) the same glass (c) the order of the layers (d) the same three liquids
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 same glass is kept the same. (a) True (b) False
7. 7.🛟 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
8. 8.⚖️ 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
9. 9.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
10. 10.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) air (d) a coin
11. 11.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) honey (d) an ice cube
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) honey (c) water with food colour (d) a tall clear glass
14. 14.🧺 Which of these is not needed for the density tower? (a) honey (b) turmeric powder (c) a tall clear glass (d) cooking oil
15. 15.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is the coldest (d) it is yellow
16. 16.True or false: a magnet is needed for the density tower. (a) True (b) False
17. 17.⚖️ 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 change it (c) we measure it
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) True (b) False
19. 19.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is heavier (d) oil is sticky
20. 20.⚖️ 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
21. 21.🧺 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) a spoon (d) yeast
22. 22.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) three separate layers (c) one mixed colour (d) bubbles of gas
23. 23.🧺 Do we need honey for the density tower? (a) not needed (b) needed
24. 24.True or false: a magnet is not needed for the density tower. (a) True (b) False
25. 25.True or false: a ping-pong ball is denser than water. (a) True (b) False
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 the layers”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a spoon (c) a battery cell (d) a mirror
28. 28.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
29. 29.🍯 Which of these is denser than water? (a) a cork (b) a glass marble (c) air (d) an ice cube
30. 30.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very colourful (d) very hot
31. 31.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
32. 32.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.True or false: a battery cell is needed for the density tower. (a) True (b) False
34. 34.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a battery cell (c) water with food colour (d) a balloon
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) cooking oil (c) a tall clear glass (d) honey
37. 37.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) on top of the oil (c) in the water layer (d) in the honey layer
40. 40.True or false: air is denser than water. (a) True (b) False

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