Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 758 · 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.True or false: a coin is denser than water. (a) True (b) False
2. 2.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) a pebble (d) cooking oil
3. 3.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
4. 4.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) on top of the oil (d) in the oil layer
5. 5.🧺 Which of these is needed for the density tower? (a) a magnet (b) a spoon (c) yeast (d) a balloon
6. 6.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
7. 7.🧺 Which of these is needed for the density tower? (a) water with food colour (b) yeast (c) a balloon (d) a mirror
8. 8.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) an ice cube (d) a glass marble
9. 9.True or false: a mirror is needed for the density tower. (a) False (b) True
10. 10.🧺 Do we need honey for the density tower? (a) needed (b) not needed
11. 11.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
13. 13.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
14. 14.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they mix for ever (c) they turn to honey (d) they separate again
15. 15.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
16. 16.True or false: a pebble is denser than water. (a) True (b) False
17. 17.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) a mirror (d) cooking oil
18. 18.⚖️ 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 pouring (b) the order of the layers (c) how much of each liquid (d) the same glass
19. 19.⚖️ 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
20. 20.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very thin (d) very hot
21. 21.True or false: a spoon is needed for the density tower. (a) True (b) False
22. 22.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
23. 23.🔍 Which is the odd one out? (a) an ice cube (b) air (c) very salty water (d) a cork
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) a spoon (c) honey (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? What do we do with “the order of the layers”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) water with food colour (d) a tall clear glass
27. 27.⚖️ 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) False (b) True
28. 28.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) yeast (c) honey (d) cooking oil
29. 29.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
30. 30.True or false: water with food colour is needed for the density tower. (a) True (b) False
31. 31.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the coldest (d) it is the densest
32. 32.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) a spoon (c) a tall clear glass (d) water with food colour
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) cooking oil (d) a mirror
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a balloon (d) water with food colour
35. 35.🔍 Which is the odd one out? (a) air (b) a pebble (c) an ice cube (d) a ping-pong ball
36. 36.True or false: an ice cube is less dense than water. (a) False (b) True
37. 37.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) three separate layers (d) the glass gets hot
38. 38.⚖️ 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 measure it (b) we keep it the same (c) we change it
39. 39.⚖️ 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 the layers (b) the order of pouring (c) how much of each liquid
40. 40.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass

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