Floating and Sinking Experiment Worksheet

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

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