Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 552 · 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 feather (b) a ball of clay (c) a glass marble (d) a steel spoon
2. 2.🛟 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
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
4. 4.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
5. 5.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it sinks faster (d) it dissolves
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a battery cell (d) small test objects
7. 7.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a towel for spills (d) small test objects
9. 9.True or false: a ping-pong ball sinks in water. (a) True (b) False
10. 10.🔍 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
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🛟 Does a cork float or sink in water? (a) floats (b) sinks
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
14. 14.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
15. 15.🔍 Which is the odd one out? (a) a cork (b) an iron nail (c) a dry leaf (d) a ping-pong ball
16. 16.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a coin (d) a piece of thermocol
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a results table (d) a battery cell
20. 20.True or false: a dry leaf floats on water. (a) True (b) False
21. 21.🛟 Which of these floats on water? (a) an iron nail (b) a ping-pong ball (c) a glass marble (d) a metal key
22. 22.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
23. 23.🛟 Does a feather float or sink in water? (a) floats (b) sinks
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) small test objects (d) a balloon
28. 28.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) an ice cube (d) a ball of clay
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a magnet (d) a towel for spills
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
34. 34.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a pebble (d) a feather
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a tub of water (d) small test objects
36. 36.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a metal key (d) an empty capped bottle
37. 37.True or false: a pebble floats on water. (a) True (b) False
38. 38.🛟 Which of these floats on water? (a) a steel spoon (b) an ice cube (c) an iron nail (d) a coin
39. 39.True or false: an ice cube sinks in water. (a) True (b) False
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet

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