Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 719 · 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? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
3. 3.⚖️ 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
4. 4.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
5. 5.⚖️ 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 measure it (b) we change it (c) we keep it the same
6. 6.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
7. 7.True or false: an iron nail sinks in water. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) an ice-cream stick (d) a steel spoon
9. 9.⚖️ 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 change it (b) we keep it the same (c) we measure it
10. 10.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
11. 11.🧺 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 magnet (d) a tub of water
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
13. 13.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
14. 14.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
15. 15.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
17. 17.🚢 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
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) small test objects (d) a balloon
19. 19.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
20. 20.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a glass marble (d) a cork
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
23. 23.⚖️ 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 shape of the clay (c) the kind of clay
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a towel for spills (d) a results table
25. 25.🛟 Does a feather float or sink in water? (a) floats (b) sinks
26. 26.🔮 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 dissolves (d) it can float
27. 27.⚖️ 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 tub of water (b) the shape of the clay (c) whether it floats (d) the amount of clay
28. 28.True or false: a ping-pong ball floats on water. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a piece of thermocol (d) a coin
30. 30.True or false: an iron nail floats on water. (a) False (b) True
31. 31.True or false: a ball of clay floats on water. (a) False (b) True
32. 32.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
33. 33.🛟 Which of these floats on water? (a) an iron nail (b) an ice-cream stick (c) a coin (d) a steel spoon
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) a tub of water (d) a towel for spills
35. 35.True or false: a cork floats on water. (a) False (b) True
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
38. 38.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
39. 39.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
40. 40.True or false: a steel spoon floats on water. (a) True (b) False

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