Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 553 · 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 is the odd one out? (a) a feather (b) a ball of clay (c) a cork (d) an empty capped bottle
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
3. 3.🔍 Which is the odd one out? (a) a piece of thermocol (b) a feather (c) an iron nail (d) an empty capped bottle
4. 4.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) yeast
6. 6.🔍 Which is the odd one out? (a) a metal key (b) an ice-cream stick (c) a ball of clay (d) a pebble
7. 7.⚖️ 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
8. 8.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
9. 9.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) an iron nail (d) a feather
10. 10.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
11. 11.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a metal key (d) an ice cube
12. 12.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
14. 14.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
17. 17.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
18. 18.⚖️ 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) False (b) True
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
20. 20.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the tub of water (c) the kind of clay (d) whether it floats
25. 25.True or false: a cork floats on water. (a) False (b) True
26. 26.🛟 Does a feather float or sink in water? (a) sinks (b) floats
27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
28. 28.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
29. 29.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
30. 30.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a metal key (d) a cork
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a battery cell (d) a balloon
32. 32.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a glass marble (c) a cork (d) a feather
33. 33.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
34. 34.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) a steel spoon (d) a dry leaf
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) yeast (d) a tub of water
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) small test objects (d) a tub of water
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror
38. 38.True or false: a glass marble floats on water. (a) True (b) False
39. 39.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) a glass marble (d) an empty capped bottle
40. 40.True or false: a ping-pong ball floats on water. (a) True (b) False

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