Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 335 · 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.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
2. 2.⚖️ 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
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
4. 4.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a balloon
6. 6.⚖️ 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
7. 7.True or false: an ice cube sinks in water. (a) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.⚖️ 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
10. 10.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a coin (c) a feather (d) an ice cube
11. 11.🛟 Which of these floats on water? (a) a ball of clay (b) a cork (c) a metal key (d) a glass marble
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
14. 14.🛟 Does a cork float or sink in water? (a) sinks (b) floats
15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
16. 16.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the amount of clay (c) the shape of the clay
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a balloon (d) a results table
20. 20.⚖️ 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
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 tub of water (b) the amount of clay (c) the shape of the clay (d) whether it floats
22. 22.🧺 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) a results table (d) a mirror
23. 23.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
24. 24.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a coin (d) a steel spoon
25. 25.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
26. 26.⚖️ 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 kind of clay (c) the amount of clay (d) the shape of the clay
27. 27.⚖️ 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 measure it (b) we change it (c) we keep it the same
28. 28.True or false: a steel spoon floats on water. (a) True (b) False
29. 29.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
30. 30.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a feather (d) an iron nail
32. 32.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) an iron nail (d) a piece of thermocol
33. 33.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a feather (d) a ball of clay
34. 34.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
35. 35.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
36. 36.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
37. 37.🛟 Which of these floats on water? (a) a pebble (b) an empty capped bottle (c) a ball of clay (d) a metal key
38. 38.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
39. 39.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a metal key (d) a ping-pong ball
40. 40.True or false: an iron nail floats on water. (a) False (b) True

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