Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 334 · 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.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the tub of water (c) the shape of the clay
3. 3.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) turmeric powder
7. 7.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
8. 8.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.⚖️ 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
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
12. 12.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) a glass marble (d) a coin
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
15. 15.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) an iron nail (d) a feather
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a towel for spills (d) a battery cell
17. 17.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a ping-pong ball (d) a pebble
18. 18.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
19. 19.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: a piece of thermocol sinks in water. (a) False (b) True
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a tub of water (d) a towel for spills
22. 22.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a steel spoon (d) a piece of thermocol
23. 23.⚖️ 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
24. 24.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
25. 25.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
26. 26.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
27. 27.True or false: an ice cube sinks in water. (a) False (b) True
28. 28.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
29. 29.🛟 Which of these floats on water? (a) a ball of clay (b) a cork (c) a glass marble (d) a metal key
30. 30.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
31. 31.⚖️ 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 measure it (b) we change it (c) we keep it the same
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
34. 34.🛟 Does a feather float or sink in water? (a) floats (b) sinks
35. 35.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) yeast (c) small test objects (d) a towel for spills
38. 38.True or false: a ping-pong ball sinks in water. (a) True (b) False
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a balloon (d) a tub of water
40. 40.⚖️ 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 change it (b) we measure it (c) we keep it the same

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