Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 462 · 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.🛟 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 splash everyone (d) to win a prize
2. 2.🧺 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 results table (d) a battery cell
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a magnet (d) a tub of water
4. 4.True or false: an ice-cream stick sinks in water. (a) True (b) False
5. 5.⚖️ 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
6. 6.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
8. 8.⚖️ 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
9. 9.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
10. 10.True or false: an empty capped bottle sinks in water. (a) True (b) False
11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
12. 12.True or false: a results table is not 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) small test objects (b) a mirror (c) a balloon (d) yeast
14. 14.⚖️ 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
15. 15.🚢 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
16. 16.⚖️ 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 shape of the clay (c) the amount of clay (d) whether it floats
17. 17.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a ping-pong ball (d) an iron nail
19. 19.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
21. 21.True or false: a dry leaf sinks in water. (a) True (b) False
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 results table (c) yeast (d) a towel for spills
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
24. 24.⚖️ 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
25. 25.True or false: a feather floats on water. (a) True (b) False
26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a ping-pong ball (c) an ice cube (d) an empty capped bottle
28. 28.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
29. 29.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
30. 30.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a balloon (d) a towel for spills
32. 32.⚖️ 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
33. 33.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
34. 34.🧺 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) turmeric powder
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) turmeric powder (d) a tub of water
36. 36.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) an iron nail (d) a piece of thermocol
37. 37.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a piece of thermocol (d) a coin
38. 38.🛟 Which of these floats on water? (a) a ping-pong ball (b) a metal key (c) a steel spoon (d) a coin
39. 39.🔍 Which is the odd one out? (a) a ball of clay (b) an empty capped bottle (c) a steel spoon (d) an iron nail
40. 40.True or false: an ice-cream stick floats on water. (a) False (b) True

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