Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 860 · 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 what we measure? (a) the kind of clay (b) the amount of clay (c) whether it floats (d) the tub of water
2. 2.🛟 Which of these floats on water? (a) a pebble (b) a piece of thermocol (c) a coin (d) a ball of clay
3. 3.🛟 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) run around the tub (d) play near a deep pond
4. 4.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
5. 5.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a dry leaf (d) an iron nail
8. 8.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
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 can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) it has a magnet (d) steel is very light
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) neither of them (d) the small pebble
12. 12.🧺 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) small test objects (d) a mirror
13. 13.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) turmeric powder (d) a battery cell
15. 15.⚖️ 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 shape of the clay (b) whether it floats (c) the amount of clay (d) the kind of clay
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a ping-pong ball (b) a metal key (c) a piece of thermocol (d) an ice-cream stick
18. 18.True or false: a glass marble floats on water. (a) False (b) True
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
20. 20.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
21. 21.True or false: a ball of clay sinks in water. (a) True (b) False
22. 22.🔮 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
23. 23.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a mirror (d) a tub of water
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) a results table (d) small test objects
28. 28.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
29. 29.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
30. 30.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
31. 31.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
33. 33.🛟 Which of these floats on water? (a) a ball of clay (b) an empty capped bottle (c) a steel spoon (d) a coin
34. 34.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
35. 35.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
36. 36.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
38. 38.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
39. 39.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a balloon (d) a results table

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