Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 504 · 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 is needed for the float-or-sink test? (a) a balloon (b) a towel for spills (c) turmeric powder (d) a mirror
2. 2.🧺 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 towel for spills
3. 3.🛟 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
4. 4.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
5. 5.True or false: a dry leaf sinks in water. (a) True (b) False
6. 6.⚖️ 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) True (b) False
7. 7.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a metal key (c) an ice-cream stick (d) an ice cube
8. 8.⚖️ 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) True (b) False
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a towel for spills (d) a results table
10. 10.🚢 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
11. 11.⚖️ 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
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
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 shape of the clay (b) the amount of clay (c) whether it floats
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) turmeric powder (d) small test objects
15. 15.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
16. 16.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder
19. 19.⚖️ 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) True (b) False
20. 20.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) a ball of clay (d) a cork
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
22. 22.True or false: a glass marble sinks in water. (a) False (b) True
23. 23.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.True or false: an empty capped bottle floats on water. (a) True (b) False
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a results table (d) small test objects
27. 27.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
28. 28.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice cube (c) a ball of clay (d) an ice-cream stick
29. 29.True or false: a cork floats on water. (a) True (b) False
30. 30.🛟 Does a cork float or sink in water? (a) sinks (b) floats
31. 31.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a ball of clay (d) an empty capped bottle
32. 32.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
33. 33.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
34. 34.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
36. 36.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
37. 37.⚖️ 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 keep it the same (c) we change it
38. 38.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
39. 39.⚖️ 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
40. 40.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed

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