Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 750 · 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) a glass marble (b) a ping-pong ball (c) a cork (d) air
2. 2.⚖️ 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 what we measure. (a) False (b) True
3. 3.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the density tower? (a) a mirror (b) water with food colour (c) a balloon (d) turmeric powder
5. 5.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) an ice cube (d) a coin
6. 6.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a spoon (d) a mirror
8. 8.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
9. 9.True or false: a mirror is not needed for the density tower. (a) False (b) True
10. 10.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is heavier (d) oil is less dense
11. 11.⚖️ 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 the one thing we change. (a) True (b) False
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 “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.True or false: a ping-pong ball is denser than water. (a) False (b) True
14. 14.True or false: a ping-pong ball is less dense than water. (a) False (b) True
15. 15.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
16. 16.True or false: very salty water is less dense than water. (a) False (b) True
17. 17.⚖️ 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 three liquids (b) the order of pouring (c) the order of the layers (d) the same glass
18. 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) water with food colour (d) a magnet
19. 19.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.⚖️ 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 same glass (c) how much of each liquid (d) the order of the layers
21. 21.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) under the honey (c) in the water layer (d) in the honey layer
22. 22.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) cooking oil (d) a glass marble
24. 24.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
25. 25.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
26. 26.True or false: cooking oil is needed for the density tower. (a) False (b) True
27. 27.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) cooking oil (d) a balloon
28. 28.📘 What does “dense” mean? (a) very hot (b) very thin (c) heavy for its size (d) very colourful
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 same glass is what we measure. (a) False (b) True
30. 30.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
31. 31.True or false: a battery cell is not needed for the density tower. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) honey (b) air (c) cooking oil (d) a ping-pong ball
33. 33.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a balloon (c) cooking oil (d) honey
35. 35.🍯 Which of these is denser than water? (a) very salty water (b) a cork (c) an ice cube (d) cooking oil
36. 36.True or false: a pebble is less dense than water. (a) True (b) False
37. 37.⚖️ 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) how much of each liquid
38. 38.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
39. 39.True or false: cooking oil is denser than water. (a) False (b) True
40. 40.⚖️ 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

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