Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 416 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
2. 2.True or false: a piece of thermocol floats on water. (a) True (b) False
3. 3.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
4. 4.⚖️ 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
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.⚖️ 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) whether it floats (c) the shape of the clay
7. 7.⚖️ 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
8. 8.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a feather (d) a coin
9. 9.True or false: a feather floats on water. (a) False (b) True
10. 10.⚖️ 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 measure it (b) we keep it the same (c) we change it
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
12. 12.🛟 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 win a prize (d) to splash everyone
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
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 magnet (c) small test objects (d) a tub of water
15. 15.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
16. 16.🔮 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
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a results table
18. 18.🔮 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
19. 19.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a results table (d) a magnet
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
22. 22.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
23. 23.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) a cork (d) a metal key
24. 24.⚖️ 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 shape of the clay (b) the kind of clay (c) the tub of water (d) whether it floats
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a battery cell (d) yeast
26. 26.True or false: a piece of thermocol sinks in water. (a) True (b) False
27. 27.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
28. 28.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
29. 29.⚖️ 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 measure it (c) we change it
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a tub of water (d) a results table
32. 32.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
33. 33.🔍 Which is the odd one out? (a) a feather (b) a steel spoon (c) a metal key (d) a coin
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the amount of clay
35. 35.⚖️ 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
36. 36.🛟 Does a feather float or sink in water? (a) sinks (b) floats
37. 37.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
38. 38.True or false: a glass marble floats on water. (a) True (b) False
39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
40. 40.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True

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