Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 610 · 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.True or false: an ice-cream stick floats on water. (a) False (b) True
2. 2.True or false: a steel spoon floats on water. (a) True (b) False
3. 3.🔮 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
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
5. 5.⚖️ 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 change it (b) we measure it (c) we keep it the same
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) a towel for spills (d) a tub of water
7. 7.⚖️ 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) whether it floats (c) the amount of clay
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.⚖️ 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
10. 10.🛟 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 hide the corks (d) to win a prize
11. 11.True or false: an ice cube floats on water. (a) False (b) True
12. 12.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
13. 13.True or false: a ping-pong ball sinks in water. (a) True (b) False
14. 14.🧺 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 mirror (d) a results table
15. 15.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
16. 16.⚖️ 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 shape of the clay (d) the kind of clay
17. 17.🛟 Which of these sinks in water? (a) a coin (b) a feather (c) an empty capped bottle (d) an ice cube
18. 18.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
19. 19.🛟 Does a cork float or sink in water? (a) floats (b) sinks
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a towel for spills (d) a tub of water
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 change it (b) we keep it the same (c) we measure it
22. 22.🛟 Which of these floats on water? (a) a piece of thermocol (b) a steel spoon (c) a pebble (d) a ball of clay
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a tub of water (d) small test objects
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) yeast
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a battery cell (d) a mirror
27. 27.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
28. 28.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an iron nail (d) a feather
29. 29.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an iron nail (d) a dry leaf
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a results table (c) small test objects (d) a tub of water
31. 31.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
32. 32.🔍 Which is the odd one out? (a) a dry leaf (b) a coin (c) an ice-cream stick (d) a piece of thermocol
33. 33.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
34. 34.🚢 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
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a tub of water (d) small test objects
36. 36.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) a steel spoon (d) a feather
38. 38.🛟 Does a coin float or sink in water? (a) sinks (b) floats
39. 39.🧺 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) turmeric powder (d) a results table
40. 40.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) an empty capped bottle (d) a glass marble

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