Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 113 · 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 pebble (b) an ice cube (c) a metal key (d) a coin
2. 2.🛟 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
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
4. 4.⚖️ 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 change it (c) we keep it the same
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 towel for spills (c) a balloon (d) a results table
6. 6.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Which of these floats on water? (a) a ball of clay (b) a piece of thermocol (c) a metal key (d) an iron nail
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) whether it floats (c) the tub of water
9. 9.⚖️ 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
10. 10.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
11. 11.🔮 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
12. 12.True or false: a dry leaf sinks in water. (a) True (b) False
13. 13.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a results table (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 tub of water”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🔍 Which is the odd one out? (a) a dry leaf (b) an ice-cream stick (c) a feather (d) a glass marble
18. 18.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
19. 19.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
20. 20.⚖️ 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 amount of clay (c) the shape of the clay
21. 21.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
22. 22.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
23. 23.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
24. 24.🛟 Does a feather float or sink in water? (a) floats (b) sinks
25. 25.True or false: an ice cube sinks in water. (a) True (b) False
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) a results table (d) small test objects
27. 27.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
29. 29.True or false: a piece of thermocol sinks in water. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a cork (b) a piece of thermocol (c) a feather (d) a coin
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) turmeric powder (d) a towel for spills
32. 32.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) an ice-cream stick (d) an iron nail
33. 33.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
34. 34.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
35. 35.True or false: a ball of clay floats on water. (a) True (b) False
36. 36.⚖️ 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 amount of clay (d) the shape of the clay
37. 37.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
38. 38.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
39. 39.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a glass marble (d) a ping-pong ball
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True

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