Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 268 · 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.🧺 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) small test objects (d) a balloon
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.True or false: a metal key floats on water. (a) False (b) True
4. 4.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a cork (b) a steel spoon (c) a glass marble (d) a metal key
6. 6.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
7. 7.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
8. 8.⚖️ 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 kind of clay (c) whether it floats
9. 9.🛟 Which of these sinks in water? (a) a metal key (b) an ice cube (c) an ice-cream stick (d) a piece of thermocol
10. 10.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
12. 12.⚖️ 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) True (b) False
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) small test objects (d) a tub of water
14. 14.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) an ice cube (d) a pebble
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) a balloon
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 measure it (b) we keep it the same (c) we change it
17. 17.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
18. 18.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the tub of water (d) the shape of the clay
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a battery cell (d) a balloon
21. 21.True or false: a pebble sinks in water. (a) True (b) False
22. 22.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
23. 23.🧺 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 results table
24. 24.⚖️ 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
25. 25.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
26. 26.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
27. 27.True or false: a feather sinks in water. (a) False (b) True
28. 28.True or false: an ice cube floats on water. (a) True (b) False
29. 29.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
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 of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) turmeric powder (d) a towel for spills
33. 33.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a coin (d) a piece of thermocol
34. 34.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) an ice-cream stick (d) a coin
35. 35.⚖️ 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
36. 36.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a coin (c) an ice cube (d) a feather
37. 37.True or false: an ice cube sinks in water. (a) True (b) False
38. 38.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
39. 39.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
40. 40.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True

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