Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 817 · 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 should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a magnet
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
4. 4.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a ping-pong ball (d) a metal key
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) the shape of the clay (c) whether it floats (d) the kind of clay
6. 6.⚖️ 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
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) a mirror
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) yeast
9. 9.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
10. 10.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
12. 12.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
13. 13.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) a ping-pong ball (d) a pebble
14. 14.⚖️ 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
15. 15.True or false: a glass marble floats on water. (a) False (b) True
16. 16.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
17. 17.True or false: a coin floats on water. (a) True (b) False
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
19. 19.⚖️ 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
20. 20.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
21. 21.⚖️ 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
22. 22.True or false: a pebble floats on water. (a) False (b) True
23. 23.True or false: an ice cube sinks in water. (a) True (b) False
24. 24.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
26. 26.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
27. 27.⚖️ 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) False (b) True
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) turmeric powder (d) a towel for spills
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a towel for spills (d) a battery cell
31. 31.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) a balloon
33. 33.🛟 Does a cork float or sink in water? (a) floats (b) sinks
34. 34.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
35. 35.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a ball of clay (d) an ice cube
36. 36.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a magnet (d) small test objects
38. 38.True or false: a feather sinks in water. (a) True (b) False
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a towel for spills (d) a tub of water
40. 40.True or false: a dry leaf sinks in water. (a) False (b) True

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