Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 471 · 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 balloon (b) a towel for spills (c) small test objects (d) a tub of water
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) a towel for spills (d) small test objects
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a magnet (d) small test objects
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a tub of water (d) a balloon
5. 5.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
6. 6.True or false: an empty capped bottle sinks in water. (a) False (b) True
7. 7.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
8. 8.🛟 Does a coin float or sink in water? (a) floats (b) sinks
9. 9.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
10. 10.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
13. 13.⚖️ 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 amount of clay (b) the kind of clay (c) the shape of the clay (d) whether it floats
14. 14.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
15. 15.True or false: a piece of thermocol floats on water. (a) True (b) False
16. 16.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
17. 17.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
18. 18.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a piece of thermocol (b) an iron nail (c) a pebble (d) a glass marble
20. 20.⚖️ 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
21. 21.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
22. 22.🚢 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
23. 23.⚖️ 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) True (b) False
24. 24.True or false: a feather floats on water. (a) False (b) True
25. 25.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a ping-pong ball (d) a metal key
26. 26.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
27. 27.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a cork (c) a feather (d) a coin
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the kind of clay (c) the shape of the clay (d) whether it floats
29. 29.True or false: an ice-cream stick sinks in water. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) a piece of thermocol (d) a pebble
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
33. 33.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
34. 34.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
35. 35.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
36. 36.⚖️ 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
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) small test objects (d) a tub of water
39. 39.⚖️ 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
40. 40.⚖️ 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) False (b) True

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