Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 321 · 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.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) a mirror
2. 2.True or false: a ping-pong ball sinks in water. (a) False (b) True
3. 3.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) yeast (d) a results table
5. 5.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
6. 6.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
8. 8.⚖️ 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 kind of clay (c) whether it floats
9. 9.🧺 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 balloon
10. 10.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
11. 11.⚖️ 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) False (b) True
12. 12.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a ping-pong ball (c) an empty capped bottle (d) a metal key
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
14. 14.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
15. 15.⚖️ 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
16. 16.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
17. 17.🛟 Does a coin float or sink in water? (a) floats (b) sinks
18. 18.🧺 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) turmeric powder
19. 19.True or false: a metal key floats on water. (a) True (b) False
20. 20.⚖️ 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 tub of water (c) the shape of the clay (d) whether it floats
21. 21.🛟 Does a feather float or sink in water? (a) sinks (b) floats
22. 22.True or false: a glass marble floats on water. (a) True (b) False
23. 23.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a magnet (d) a battery cell
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a towel for spills (d) a tub of water
28. 28.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) an ice-cream stick (d) a glass marble
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a towel for spills (d) a battery cell
31. 31.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
32. 32.⚖️ 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
33. 33.🧺 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 battery cell
34. 34.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a glass marble (d) an ice cube
35. 35.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
36. 36.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a steel spoon (d) a ping-pong ball
37. 37.True or false: a feather sinks in water. (a) True (b) False
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
39. 39.🛟 Which of these floats on water? (a) an ice-cream stick (b) a coin (c) a metal key (d) a glass marble
40. 40.🛟 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

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