Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 820 · 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 magnet (b) small test objects (c) a towel for spills (d) a tub of water
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) yeast (d) a balloon
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
4. 4.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a dry leaf (c) a piece of thermocol (d) a pebble
5. 5.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
6. 6.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
7. 7.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) turmeric powder (d) a results table
9. 9.🔍 Which is the odd one out? (a) an iron nail (b) an ice cube (c) a ping-pong ball (d) a dry leaf
10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
12. 12.🛟 Which of these sinks in water? (a) an ice cube (b) a piece of thermocol (c) an ice-cream stick (d) a coin
13. 13.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) an iron nail (d) a piece of thermocol
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 kept the same. (a) False (b) True
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
17. 17.🧊 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
18. 18.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
19. 19.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) a magnet
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a towel for spills (d) turmeric powder
24. 24.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) a balloon
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
30. 30.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a towel for spills (d) a tub of water
32. 32.🧺 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) yeast
33. 33.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
34. 34.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
35. 35.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a pebble (d) a ping-pong ball
36. 36.🛟 Does a coin float or sink in water? (a) sinks (b) floats
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the tub of water (c) the kind of clay (d) whether it floats
38. 38.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) an ice-cream stick (d) a ball of clay
39. 39.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a tub of water (d) a towel for spills

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