Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 378 · 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 not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a battery cell (d) small test objects
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) small test objects (d) a tub of water
3. 3.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) a glass marble (d) an empty capped bottle
4. 4.🛟 Which of these floats on water? (a) a ping-pong ball (b) a steel spoon (c) an iron nail (d) a coin
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) yeast (d) small test objects
6. 6.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a balloon (d) small test objects
8. 8.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
12. 12.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) an iron nail (d) a glass marble
13. 13.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a glass marble (d) a cork
14. 14.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
15. 15.True or false: an ice cube sinks in water. (a) False (b) True
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a towel for spills (d) small test objects
17. 17.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the amount of clay (d) the shape of the clay
20. 20.⚖️ 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 tub of water (c) whether it floats
21. 21.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a cork (d) a ball of clay
22. 22.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
23. 23.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
24. 24.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
25. 25.🛟 Which of these floats on water? (a) an ice cube (b) a ball of clay (c) a coin (d) a pebble
26. 26.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) an empty capped bottle (d) a cork
27. 27.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a feather (d) a coin
28. 28.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) a cork (d) a piece of thermocol
29. 29.⚖️ 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
30. 30.True or false: a coin floats on water. (a) True (b) False
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a tub of water (d) a battery cell
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a tub of water (d) small test objects
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) turmeric powder (d) a mirror
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a piece of thermocol (d) a glass marble

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