Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 324 · 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) a mirror (b) a magnet (c) honey (d) yeast
2. 2.True or false: cooking oil is denser than water. (a) True (b) False
3. 3.⚖️ 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) False (b) True
4. 4.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a ping-pong ball (d) honey
5. 5.True or false: a ping-pong ball is less dense than water. (a) False (b) True
6. 6.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
7. 7.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the oil
8. 8.📘 What does “dense” mean? (a) very hot (b) very thin (c) heavy for its size (d) very colourful
9. 9.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) honey (d) a balloon
10. 10.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) a tall clear glass (d) a balloon
12. 12.True or false: a balloon is not needed for the density tower. (a) False (b) True
13. 13.True or false: honey is needed for the density tower. (a) True (b) False
14. 14.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
15. 15.True or false: a pebble is denser than water. (a) False (b) True
16. 16.⚖️ 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
17. 17.True or false: honey is less dense than water. (a) False (b) True
18. 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a balloon (d) water with food colour
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) honey (c) a spoon (d) a tall clear glass
20. 20.🔮 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
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 kept the same? (a) the order of pouring (b) the same three liquids (c) the order of the layers
22. 22.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) yeast (c) a spoon (d) honey
23. 23.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is the coldest (d) it is yellow
24. 24.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) throw the glass (d) pour it on the floor
25. 25.⚖️ 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 measure it (b) we change it (c) we keep it the same
26. 26.⚖️ 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 same three liquids (c) the order of pouring (d) the order of the layers
27. 27.True or false: a battery cell is needed for the density tower. (a) True (b) False
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: how much of each liquid is the one thing we change. (a) False (b) True
29. 29.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
30. 30.True or false: a mirror is not needed for the density tower. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) honey (d) air
32. 32.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
33. 33.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.⚖️ 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
35. 35.⚖️ 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 change it (b) we measure it (c) we keep it the same
36. 36.⚖️ 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) False (b) True
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 “the order of the layers”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🍯 Which of these is less dense than water? (a) very salty water (b) a glass marble (c) honey (d) air
39. 39.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they turn to honey (d) they mix for ever
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 kept the same? (a) the same glass (b) the order of the layers (c) the order of pouring

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