Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 753 · 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.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a ping-pong ball (d) a pebble
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
3. 3.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
4. 4.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
5. 5.🛟 Which of these sinks in water? (a) a ball of clay (b) a feather (c) a cork (d) a dry leaf
6. 6.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a mirror (d) a results table
8. 8.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
9. 9.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
10. 10.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
11. 11.⚖️ 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 tub of water (b) the amount of clay (c) the kind of clay (d) the shape of the clay
12. 12.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) an ice cube (d) a glass marble
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a cork (b) a feather (c) a piece of thermocol (d) a glass marble
16. 16.⚖️ 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
17. 17.🔍 Which is the odd one out? (a) a metal key (b) an empty capped bottle (c) an iron nail (d) a coin
18. 18.True or false: a piece of thermocol sinks in water. (a) True (b) False
19. 19.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
20. 20.🔮 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
21. 21.🔍 Which is the odd one out? (a) a ping-pong ball (b) a ball of clay (c) an ice cube (d) a cork
22. 22.⚖️ 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
23. 23.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
24. 24.True or false: a dry leaf sinks in water. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a dry leaf (d) a piece of thermocol
26. 26.⚖️ 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 kind of clay (c) whether it floats
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a magnet (d) a results table
29. 29.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) turmeric powder (d) a results table
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) a tub of water
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) yeast (d) a balloon
33. 33.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) an ice-cream stick (d) a coin
34. 34.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
35. 35.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
36. 36.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
37. 37.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a tub of water (d) a results table

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