Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 782 · 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.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
4. 4.True or false: an iron nail sinks in water. (a) False (b) True
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a pebble (d) an ice cube
7. 7.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
8. 8.⚖️ 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
9. 9.🛟 Does a feather float or sink in water? (a) sinks (b) floats
10. 10.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
14. 14.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) an ice cube (d) a steel spoon
15. 15.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) an iron nail (d) a piece of thermocol
16. 16.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
17. 17.⚖️ 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 measure it (c) we keep it the same
18. 18.⚖️ 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 keep it the same (c) we change it
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a battery cell (d) yeast
20. 20.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) turmeric powder
22. 22.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
23. 23.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) an iron nail (d) a cork
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
25. 25.⚖️ 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 kind of clay (c) the shape of the clay (d) the amount of clay
26. 26.True or false: a dry leaf floats on water. (a) True (b) False
27. 27.⚖️ 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
28. 28.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
29. 29.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
30. 30.🛟 Which of these floats on water? (a) an ice cube (b) a steel spoon (c) a ball of clay (d) an iron nail
31. 31.True or false: a cork floats on water. (a) False (b) True
32. 32.🛟 Does a coin float or sink in water? (a) floats (b) sinks
33. 33.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a results table (d) a tub of water
35. 35.🔮 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 sinks faster (d) it turns to stone
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a results table (d) small test objects
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a balloon (d) turmeric powder
38. 38.⚖️ 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 amount of clay (c) the shape of the clay
39. 39.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
40. 40.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats

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