Floating and Sinking Experiment Worksheet

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

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