Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 726 · 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.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
2. 2.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a magnet (d) a battery cell
4. 4.🔍 Which is the odd one out? (a) a ball of clay (b) an empty capped bottle (c) a piece of thermocol (d) a dry leaf
5. 5.⚖️ 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 measure it (b) we keep it the same (c) we change it
6. 6.🛟 Does a feather float or sink in water? (a) floats (b) sinks
7. 7.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
8. 8.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
9. 9.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) a ball of clay (d) a dry leaf
11. 11.⚖️ 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 measure it (b) we change it (c) we keep it the same
12. 12.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) turmeric powder (d) small test objects
14. 14.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
16. 16.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
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) the big log (d) neither of them
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) small test objects (d) a results table
20. 20.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a coin (d) a feather
21. 21.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
22. 22.⚖️ 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 kind of clay (c) the shape of the clay (d) the amount of clay
23. 23.🧺 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) a magnet
24. 24.🛟 Which of these floats on water? (a) a ball of clay (b) a ping-pong ball (c) a coin (d) a steel spoon
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) yeast (d) a balloon
26. 26.⚖️ 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 amount of clay (c) whether it floats
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a results table
28. 28.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
29. 29.🔮 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
30. 30.True or false: a steel spoon floats on water. (a) False (b) True
31. 31.⚖️ 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
32. 32.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
33. 33.True or false: a dry leaf floats on water. (a) True (b) False
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
35. 35.⚖️ 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
36. 36.🛟 Which of these sinks in water? (a) a steel spoon (b) a dry leaf (c) a piece of thermocol (d) an empty capped bottle
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) a tub of water (d) small test objects
38. 38.⚖️ 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
39. 39.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) an ice-cream stick (d) a glass marble
40. 40.🧺 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 balloon (d) a results table

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