Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 417 · 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 towel for spills (b) small test objects (c) a magnet (d) a tub of water
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) turmeric powder (d) a battery cell
5. 5.True or false: a ball of clay floats on water. (a) False (b) True
6. 6.🔮 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 can float (d) it turns to stone
7. 7.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
8. 8.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) a dry leaf (d) a glass marble
9. 9.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
10. 10.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
11. 11.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a battery cell (d) small test objects
14. 14.🛟 Which of these sinks in water? (a) a feather (b) a coin (c) a cork (d) an empty capped bottle
15. 15.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
16. 16.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
17. 17.True or false: a coin floats on water. (a) True (b) False
18. 18.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) a ping-pong ball (d) an iron nail
20. 20.True or false: a glass marble sinks in water. (a) True (b) False
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a battery cell (d) turmeric powder
22. 22.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
23. 23.⚖️ 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) True (b) False
24. 24.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a metal key (c) a ping-pong ball (d) an empty capped bottle
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts
26. 26.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a steel spoon (d) a piece of thermocol
27. 27.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a battery cell
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) a balloon (d) yeast
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a towel for spills (d) small test objects
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
35. 35.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the air above (d) the cork itself
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a magnet (d) a battery cell
37. 37.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a dry leaf (c) an iron nail (d) an ice-cream stick
38. 38.🛟 Which of these sinks in water? (a) a steel spoon (b) a cork (c) a dry leaf (d) an empty capped bottle
39. 39.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a mirror (d) a tub of water

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