Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 96 · 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.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
3. 3.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) whether it floats (d) the tub of water
5. 5.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
6. 6.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) an iron nail (d) an empty capped bottle
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a results table
8. 8.🧺 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) turmeric powder
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) a battery cell
11. 11.🔍 Which is the odd one out? (a) a ball of clay (b) a ping-pong ball (c) a coin (d) an iron nail
12. 12.True or false: a cork sinks in water. (a) True (b) False
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a tub of water (d) a results table
14. 14.True or false: a ball of clay sinks in water. (a) False (b) True
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
16. 16.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a ball of clay (d) a dry leaf
17. 17.🚢 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
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
19. 19.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a metal key (c) a cork (d) an ice cube
20. 20.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a cork (d) an iron nail
21. 21.🛟 Which of these sinks in water? (a) a feather (b) a piece of thermocol (c) a pebble (d) a dry leaf
22. 22.True or false: a coin floats on water. (a) False (b) True
23. 23.True or false: a metal key sinks in water. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) an iron nail (b) a dry leaf (c) a ball of clay (d) a coin
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
27. 27.True or false: an ice cube sinks in water. (a) False (b) True
28. 28.⚖️ 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) False (b) True
29. 29.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
30. 30.🔮 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
31. 31.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
32. 32.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a metal key (d) an empty capped bottle
33. 33.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a magnet (d) a battery cell
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) an ice cube (c) a cork (d) a dry leaf
37. 37.🧺 Do we need a magnet 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? Which of these is the one thing we change? (a) the kind of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
39. 39.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
40. 40.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False

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