Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 41 · 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 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
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🛟 Which of these sinks in water? (a) a dry leaf (b) a pebble (c) a feather (d) an ice cube
4. 4.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
5. 5.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
6. 6.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it bounces up (d) it floats
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a towel for spills (d) a mirror
8. 8.True or false: an empty capped bottle sinks in water. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a ball of clay (d) an ice cube
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a tub of water (d) a results table
11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
12. 12.🔍 Which is the odd one out? (a) an iron nail (b) a piece of thermocol (c) a glass marble (d) a coin
13. 13.True or false: a cork floats on water. (a) True (b) False
14. 14.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
15. 15.⚖️ 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
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) small test objects (d) a tub of water
18. 18.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a cork (d) an iron nail
19. 19.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
20. 20.True or false: a glass marble floats on water. (a) False (b) True
21. 21.⚖️ 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) whether it floats (d) the amount of clay
22. 22.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
23. 23.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a mirror (d) small test objects
25. 25.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
26. 26.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
27. 27.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
28. 28.True or false: a glass marble sinks in water. (a) True (b) False
29. 29.True or false: an ice-cream stick sinks in water. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
31. 31.🛟 Which of these sinks in water? (a) a cork (b) a ping-pong ball (c) a glass marble (d) a dry leaf
32. 32.🛟 Which of these sinks in water? (a) a metal key (b) an ice-cream stick (c) an empty capped bottle (d) a feather
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) turmeric powder
34. 34.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) a feather (d) a steel spoon
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
36. 36.⚖️ 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) False (b) True
37. 37.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a steel spoon (d) a pebble
38. 38.True or false: a steel spoon sinks in water. (a) False (b) True
39. 39.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a steel spoon (d) a piece of thermocol
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet

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