Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 235 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.⚖️ 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) False (b) True
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a magnet (d) small test objects
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a mirror (d) a towel for spills
7. 7.⚖️ 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 tub of water (c) whether it floats
8. 8.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
10. 10.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
12. 12.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
13. 13.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) a towel for spills (d) a tub of water
15. 15.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
16. 16.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
17. 17.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
18. 18.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
19. 19.🔍 Which is the odd one out? (a) an iron nail (b) a glass marble (c) a piece of thermocol (d) a steel spoon
20. 20.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) turmeric powder (d) a tub of water
22. 22.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a dry leaf (d) a piece of thermocol
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) a ball of clay (b) an ice cube (c) a steel spoon (d) an iron nail
26. 26.⚖️ 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 change it (b) we keep it the same (c) we measure it
27. 27.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
28. 28.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
29. 29.🛟 Which of these floats on water? (a) a ping-pong ball (b) a metal key (c) a steel spoon (d) a coin
30. 30.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
31. 31.🛟 Does a coin float or sink in water? (a) sinks (b) floats
32. 32.⚖️ 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) False (b) True
33. 33.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
34. 34.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a feather (d) a piece of thermocol
36. 36.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
37. 37.⚖️ 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) False (b) True
38. 38.⚖️ 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
39. 39.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a metal key (d) a feather

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