Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 751 · 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 fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
2. 2.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) a steel spoon (d) a feather
6. 6.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
7. 7.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
8. 8.🔍 Which is the odd one out? (a) a glass marble (b) an ice-cream stick (c) a dry leaf (d) a piece of thermocol
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
10. 10.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
11. 11.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
12. 12.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
13. 13.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a piece of thermocol (d) a glass marble
14. 14.⚖️ 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
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
16. 16.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) yeast (c) a balloon (d) a mirror
18. 18.⚖️ 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) whether it floats (c) the kind of clay
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a balloon (d) a magnet
20. 20.🛟 Does a coin float or sink in water? (a) floats (b) sinks
21. 21.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
23. 23.⚖️ 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
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) yeast (d) a tub of water
25. 25.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
27. 27.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
28. 28.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a mirror (d) yeast
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a results table (d) small test objects
31. 31.🧺 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
32. 32.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a magnet (d) a towel for spills
35. 35.🧺 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) yeast (d) a towel for spills
36. 36.🛟 Which of these floats on water? (a) a ball of clay (b) an ice-cream stick (c) an iron nail (d) a glass marble
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
38. 38.🧺 Do we need a tub of water 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 the one thing we change. (a) False (b) True
40. 40.⚖️ 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 change it (b) we measure it (c) we keep it the same

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