Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 295 · 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 is the odd one out? (a) cooking oil (b) air (c) a ping-pong ball (d) honey
2. 2.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) cooking oil (d) a mirror
3. 3.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
4. 4.🍯 Which of these is denser than water? (a) a coin (b) a cork (c) cooking oil (d) air
5. 5.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is heavier (d) oil is less dense
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a spoon (c) a tall clear glass (d) honey
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
9. 9.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a magnet (d) water with food colour
11. 11.🧺 Which of these is needed for the density tower? (a) a magnet (b) water with food colour (c) yeast (d) a battery cell
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🧺 Which of these is not needed for the density tower? (a) a balloon (b) water with food colour (c) honey (d) cooking oil
15. 15.True or false: a spoon is not needed for the density tower. (a) False (b) True
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a spoon (d) a battery cell
17. 17.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) on top of the oil (d) at the very bottom
19. 19.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they turn to honey (d) they become solid
20. 20.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
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 order of pouring (b) the order of the layers (c) how much of each liquid (d) the same three liquids
22. 22.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
23. 23.True or false: yeast is not needed for the density tower. (a) False (b) True
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) cooking oil (c) a tall clear glass (d) water with food colour
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) very salty water (d) an ice cube
27. 27.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
28. 28.🛟 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
29. 29.True or false: cooking oil is not needed for the density tower. (a) True (b) False
30. 30.⚖️ 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) how much of each liquid (b) the order of pouring (c) the order of the layers
31. 31.⚖️ 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
32. 32.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.True or false: a mirror is needed for the density tower. (a) True (b) False
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) cooking oil (c) a tall clear glass (d) honey
35. 35.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) honey (d) a balloon
36. 36.🍯 Which of these is less dense than water? (a) a coin (b) honey (c) a pebble (d) an ice cube
37. 37.True or false: a cork is less dense than water. (a) True (b) False
38. 38.⚖️ 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
39. 39.🍯 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
40. 40.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the water layer (c) in the honey layer (d) under the honey

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