Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 307 · 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.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
2. 2.⚖️ 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 kind of clay (b) whether it floats (c) the amount of clay (d) the shape of the clay
3. 3.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
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 change it (b) we keep it the same (c) we measure it
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a magnet (d) small test objects
6. 6.🛟 Does a feather float or sink in water? (a) sinks (b) floats
7. 7.True or false: a steel spoon sinks in water. (a) False (b) True
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
10. 10.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) a ball of clay (d) an ice-cream stick
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the tub of water (c) the amount of clay (d) whether it floats
12. 12.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
13. 13.🛟 Which of these sinks in water? (a) a glass marble (b) a ping-pong ball (c) a cork (d) a dry leaf
14. 14.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a balloon (d) a mirror
16. 16.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a feather (d) a coin
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.⚖️ 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
19. 19.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
20. 20.⚖️ 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) True (b) False
21. 21.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
22. 22.🔮 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
23. 23.🔍 Which is the odd one out? (a) a steel spoon (b) a dry leaf (c) a coin (d) an iron nail
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
26. 26.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) an iron nail (d) a cork
27. 27.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a metal key (d) an ice-cream stick
28. 28.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
29. 29.True or false: a steel spoon floats on water. (a) True (b) False
30. 30.🧺 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 results table (d) yeast
31. 31.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
32. 32.🛟 Does a coin float or sink in water? (a) floats (b) sinks
33. 33.True or false: a dry leaf floats on water. (a) True (b) False
34. 34.🛟 Which of these floats on water? (a) a piece of thermocol (b) a ball of clay (c) a steel spoon (d) an iron nail
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a battery cell
36. 36.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
37. 37.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a ping-pong ball (d) a coin
38. 38.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a piece of thermocol (d) a feather
39. 39.🛟 Which of these floats on water? (a) a metal key (b) an ice-cream stick (c) a glass marble (d) a pebble
40. 40.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves

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