Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 777 · 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.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a mirror (c) turmeric powder (d) a balloon
2. 2.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
3. 3.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) an ice cube (d) an empty capped bottle
4. 4.True or false: a feather floats on water. (a) False (b) True
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
6. 6.🔮 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
7. 7.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
8. 8.🛟 Which of these floats on water? (a) a steel spoon (b) a glass marble (c) an ice-cream stick (d) a metal key
9. 9.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
10. 10.⚖️ 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 amount of clay (b) the shape of the clay (c) the tub of water (d) the kind of clay
11. 11.⚖️ 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
12. 12.True or false: an ice-cream stick sinks in water. (a) False (b) True
13. 13.🧺 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) small test objects (d) turmeric powder
14. 14.🧺 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 balloon (d) a tub of water
15. 15.⚖️ 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
16. 16.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a magnet (d) a results table
18. 18.True or false: a steel spoon sinks in water. (a) True (b) False
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) turmeric powder (d) a results table
20. 20.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
21. 21.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
22. 22.🧺 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) a results table (d) a mirror
23. 23.True or false: a steel spoon floats on water. (a) False (b) True
24. 24.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
25. 25.🔍 Which is the odd one out? (a) a metal key (b) a piece of thermocol (c) an empty capped bottle (d) a cork
26. 26.True or false: a dry leaf floats on water. (a) True (b) False
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
28. 28.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a pebble (d) a piece of thermocol
29. 29.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a steel spoon (d) an ice cube
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a towel for spills (d) a balloon
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) a piece of thermocol (c) a feather (d) a ping-pong ball
33. 33.⚖️ 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
34. 34.True or false: a metal key floats on water. (a) False (b) True
35. 35.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
36. 36.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor

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