Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 850 · 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 tub of water (d) a magnet
2. 2.🛟 Which of these floats on water? (a) a steel spoon (b) a ping-pong ball (c) an iron nail (d) a ball of clay
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a battery cell (d) small test objects
4. 4.🛟 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
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 measure it (b) we keep it the same (c) we change it
6. 6.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a piece of thermocol (d) a coin
7. 7.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
8. 8.⚖️ 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) whether it floats (c) the kind of clay (d) the shape of the clay
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
10. 10.True or false: a steel spoon sinks in water. (a) False (b) True
11. 11.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
12. 12.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a ping-pong ball (d) a steel spoon
13. 13.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
14. 14.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
15. 15.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
16. 16.⚖️ 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 measure it (c) we change it
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a mirror (d) a magnet
18. 18.True or false: an iron nail sinks in water. (a) False (b) True
19. 19.True or false: an ice cube sinks in water. (a) False (b) True
20. 20.⚖️ 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) False (b) True
21. 21.True or false: an ice-cream stick floats on water. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a steel spoon (d) a pebble
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) turmeric powder
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a tub of water (d) a towel for spills
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
26. 26.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
27. 27.🚢 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
28. 28.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
29. 29.True or false: an iron nail floats on water. (a) True (b) False
30. 30.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
31. 31.🛟 Which of these floats on water? (a) an iron nail (b) an ice cube (c) a steel spoon (d) a metal key
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a magnet (d) a towel for spills
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the shape of the clay (d) the kind of clay
34. 34.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a coin (d) a feather
35. 35.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) an empty capped bottle (d) a coin
36. 36.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: a metal key floats on water. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a balloon (d) small test objects

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