Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 263 · 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.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
2. 2.🔍 Which is the odd one out? (a) a cork (b) a coin (c) a metal key (d) an iron nail
3. 3.⚖️ 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
4. 4.True or false: an ice cube sinks in water. (a) True (b) False
5. 5.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
6. 6.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) an ice-cream stick (d) a steel spoon
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a magnet (d) a towel for spills
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
11. 11.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a glass marble (d) an empty capped bottle
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a tub of water
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a balloon (c) yeast (d) a battery cell
15. 15.⚖️ 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 keep it the same (b) we change it (c) we measure it
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a magnet (d) a mirror
17. 17.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a battery cell (d) a magnet
19. 19.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
20. 20.🛟 Which of these floats on water? (a) a feather (b) a metal key (c) a steel spoon (d) a pebble
21. 21.True or false: a metal key sinks in water. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) a piece of thermocol (d) a feather
23. 23.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
25. 25.🛟 Does a feather float or sink in water? (a) floats (b) sinks
26. 26.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a coin (b) a dry leaf (c) an empty capped bottle (d) an ice cube
28. 28.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ 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 amount of clay (c) the shape of the clay (d) whether it floats
30. 30.🛟 Which of these floats on water? (a) an ice cube (b) a steel spoon (c) an iron nail (d) a metal key
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a coin (d) a feather
33. 33.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
34. 34.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a cork (d) a glass marble
36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
37. 37.⚖️ 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
38. 38.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed

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