Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 98 · 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.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
2. 2.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
3. 3.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a cork (d) a ball of clay
4. 4.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a coin (d) an ice-cream stick
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
7. 7.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which of these floats on water? (a) a ping-pong ball (b) a steel spoon (c) a pebble (d) a metal key
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) a results table
11. 11.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
12. 12.🔮 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
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
14. 14.🛟 Does a feather float or sink in water? (a) floats (b) sinks
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
16. 16.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
17. 17.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) an empty capped bottle (d) a pebble
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
20. 20.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
23. 23.True or false: an empty capped bottle floats on water. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a feather (b) a pebble (c) a steel spoon (d) a glass marble
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to hide the corks (d) to splash everyone
26. 26.🧺 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) yeast (d) a tub of water
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
28. 28.⚖️ 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
29. 29.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a tub of water (d) a results table
31. 31.⚖️ 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 kind of clay (c) whether it floats (d) the shape of the clay
32. 32.🛟 Which of these floats on water? (a) a cork (b) a steel spoon (c) a glass marble (d) an iron nail
33. 33.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
34. 34.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) a battery cell
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
38. 38.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
39. 39.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) a cork (d) a piece of thermocol
40. 40.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True

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