Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 870 · 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.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
2. 2.⚖️ 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 tub of water (c) the kind of clay (d) whether it floats
3. 3.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) a cork (d) a metal key
4. 4.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) an ice cube (d) a glass marble
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
8. 8.⚖️ 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) True (b) False
9. 9.🛟 Does a feather float or sink in water? (a) sinks (b) floats
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) small test objects (d) a tub of water
11. 11.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
12. 12.🔮 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
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🔍 Which is the odd one out? (a) a dry leaf (b) an ice-cream stick (c) a ping-pong ball (d) a coin
15. 15.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a glass marble (d) a metal key
16. 16.⚖️ 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 measure it (c) we keep it the same
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) a results table (d) a towel for spills
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
19. 19.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
20. 20.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🛟 Which of these floats on water? (a) an iron nail (b) a ping-pong ball (c) a coin (d) a steel spoon
23. 23.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a balloon (d) a results table
25. 25.🛟 Which of these floats on water? (a) an iron nail (b) a feather (c) a glass marble (d) a steel spoon
26. 26.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
27. 27.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
28. 28.⚖️ 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) True (b) False
29. 29.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚖️ 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 shape of the clay (c) the amount of clay
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) small test objects (d) yeast
34. 34.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) small test objects (d) a towel for spills
36. 36.⚖️ 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) False (b) True
37. 37.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a ball of clay (c) an ice cube (d) a feather
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
39. 39.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
40. 40.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats

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