Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 400 · 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.🛟 Which of these floats on water? (a) a pebble (b) an empty capped bottle (c) a glass marble (d) a coin
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
4. 4.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
5. 5.True or false: a pebble floats on water. (a) False (b) True
6. 6.⚖️ 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) the shape of the clay (c) whether it floats
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet
8. 8.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) small test objects (d) a towel for spills
10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🛟 Which of these sinks in water? (a) an iron nail (b) a dry leaf (c) an ice cube (d) a cork
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a results table (d) a tub of water
16. 16.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
18. 18.True or false: a piece of thermocol sinks in water. (a) False (b) True
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it bounces up (d) it floats
20. 20.True or false: an empty capped bottle sinks in water. (a) True (b) False
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the kind of clay (d) the amount of clay
22. 22.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a ball of clay (d) a pebble
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: a dry leaf floats on water. (a) True (b) False
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a towel for spills (d) a results table
26. 26.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
27. 27.⚖️ 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 measure it (b) we keep it the same (c) we change it
28. 28.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) turmeric powder (d) a battery cell
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a balloon (d) turmeric powder
32. 32.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
34. 34.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
35. 35.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) small test objects (d) a towel for spills
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a magnet (d) yeast
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the kind of clay (d) the shape of the clay
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a coin (d) an empty capped bottle

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