Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 110 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a results table (d) small test objects
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) yeast (d) a tub of water
4. 4.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.True or false: a piece of thermocol sinks in water. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a steel spoon (d) a cork
9. 9.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
10. 10.🛟 Does a coin float or sink in water? (a) floats (b) sinks
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) yeast (d) a towel for spills
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) yeast (d) a battery cell
13. 13.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) whether it floats (c) the amount of clay (d) the shape of the clay
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
16. 16.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
17. 17.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a tub of water (d) turmeric powder
19. 19.True or false: a coin sinks in water. (a) False (b) True
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) a mirror
21. 21.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the tub of water (d) the amount of clay
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a towel for spills (c) small test objects (d) a results table
24. 24.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) an ice-cream stick (c) an iron nail (d) a metal key
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a towel for spills (d) small test objects
27. 27.True or false: a metal key sinks in water. (a) False (b) True
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
31. 31.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a glass marble (d) an iron nail
32. 32.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) a battery cell
34. 34.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
37. 37.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
38. 38.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
39. 39.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond

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