Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 135 · 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 rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) do not lick the spoon (d) pour it on the floor
2. 2.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
3. 3.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) cooking oil (d) coloured water
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a mirror (c) cooking oil (d) water with food colour
5. 5.🛟 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
6. 6.🍯 Which of these is denser than water? (a) a cork (b) a ping-pong ball (c) a pebble (d) air
7. 7.🍯 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
8. 8.True or false: a pebble is less dense than water. (a) True (b) False
9. 9.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
10. 10.⚖️ 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
11. 11.⚖️ 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 order of the layers (b) how much of each liquid (c) the order of pouring (d) the same three liquids
12. 12.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) air (b) a cork (c) cooking oil (d) a pebble
15. 15.True or false: water with food colour is not needed for the density tower. (a) True (b) False
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) cooking oil (d) a battery cell
17. 17.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) a cork (d) very salty water
18. 18.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very hot (d) very thin
19. 19.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a balloon (d) cooking oil
21. 21.🧺 Which of these is needed for the density tower? (a) yeast (b) honey (c) a balloon (d) a mirror
22. 22.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
23. 23.🔮 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 separate again (d) they mix for ever
24. 24.⚖️ 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
25. 25.True or false: cooking oil 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? True or false: the order of the layers is what we measure. (a) False (b) True
27. 27.🔮 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
28. 28.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) cooking oil (c) a magnet (d) a mirror
29. 29.⚖️ 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 order of the layers (c) the same three liquids (d) the order of pouring
30. 30.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a magnet (c) water with food colour (d) a mirror
31. 31.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
32. 32.🧺 Do we need honey for the density tower? (a) not needed (b) needed
33. 33.⚖️ 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 measure it (b) we keep it the same (c) we change it
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a tall clear glass (c) water with food colour (d) cooking oil
35. 35.🍯 Which of these is less dense than water? (a) a ping-pong ball (b) honey (c) very salty water (d) a pebble
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 same three liquids is the one thing we change. (a) True (b) False
37. 37.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) water with food colour (c) cooking oil (d) a tall clear glass
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) yeast (c) cooking oil (d) water with food colour
40. 40.⚖️ 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) True (b) False

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