Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 445 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it turns to stone (d) it sinks faster
2. 2.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
4. 4.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a coin (d) a pebble
6. 6.🔮 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
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
10. 10.True or false: a feather floats on water. (a) True (b) False
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a mirror (d) yeast
12. 12.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
13. 13.⚖️ 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 amount of clay (c) the kind of clay (d) the shape of the clay
14. 14.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a dry leaf (d) an ice cube
15. 15.🧺 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 results table (d) a magnet
16. 16.🧺 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) a battery cell
17. 17.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) a steel spoon (d) a glass marble
19. 19.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) a ball of clay (d) an empty capped bottle
20. 20.⚖️ 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
21. 21.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
22. 22.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a cork (d) an ice-cream stick
23. 23.True or false: a ball of clay floats on water. (a) True (b) False
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 kind of clay (b) whether it floats (c) the amount of clay (d) the shape of the clay
25. 25.🛟 Which of these sinks in water? (a) an ice cube (b) a piece of thermocol (c) an iron nail (d) a feather
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a balloon
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
28. 28.⚖️ 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) True (b) False
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
30. 30.True or false: a steel spoon sinks in water. (a) False (b) True
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a towel for spills (d) a results table
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a coin (d) an ice cube
34. 34.⚖️ 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
35. 35.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
36. 36.🧺 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 results table (d) turmeric powder
37. 37.⚖️ 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
38. 38.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
39. 39.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
40. 40.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False

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