Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 660 · 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 is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a towel for spills (d) a results table
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a balloon (d) a mirror
4. 4.True or false: a towel for spills is 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? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
6. 6.🛟 Which of these floats on water? (a) a ball of clay (b) an ice-cream stick (c) a metal key (d) a pebble
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) a dry leaf (c) a pebble (d) an iron nail
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a mirror
10. 10.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a dry leaf (b) a feather (c) a steel spoon (d) an empty capped bottle
12. 12.🧺 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) a magnet (d) small test objects
13. 13.🔮 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
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
15. 15.🛟 Which of these sinks in water? (a) an iron nail (b) a piece of thermocol (c) a feather (d) a ping-pong ball
16. 16.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
17. 17.⚖️ 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) False (b) True
18. 18.True or false: a coin sinks in water. (a) False (b) True
19. 19.True or false: an ice cube floats on water. (a) True (b) False
20. 20.True or false: an ice-cream stick sinks in water. (a) True (b) False
21. 21.⚖️ 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 change it (c) we measure it
22. 22.⚖️ 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
23. 23.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) an ice cube (d) a coin
24. 24.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a piece of thermocol (d) a ball of clay
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) True (b) False
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) small test objects (d) a tub of water
30. 30.🛟 Does a feather float or sink in water? (a) sinks (b) floats
31. 31.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
32. 32.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) turmeric powder
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) the small pebble (d) both of them
35. 35.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
36. 36.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
38. 38.⚖️ 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 tub of water (d) the kind of clay
39. 39.🛟 Does a coin float or sink in water? (a) floats (b) sinks
40. 40.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False

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