Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 465 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a mirror
2. 2.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
3. 3.⚖️ 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) whether it floats (c) the tub of water
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
5. 5.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) a pebble (b) a feather (c) an iron nail (d) a coin
7. 7.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a ping-pong ball (c) a cork (d) an iron nail
8. 8.🔮 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
9. 9.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) an empty capped bottle (d) a feather
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
12. 12.True or false: a steel spoon sinks in water. (a) True (b) False
13. 13.True or false: a coin floats on water. (a) False (b) True
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
15. 15.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
17. 17.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
18. 18.True or false: an ice cube sinks in water. (a) True (b) False
19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
20. 20.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
21. 21.⚖️ 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 kind of clay (b) the tub of water (c) the shape of the clay (d) the amount of clay
22. 22.⚖️ 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) True (b) False
23. 23.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
24. 24.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) an ice-cream stick (d) a ball of clay
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a balloon (d) a results table
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) yeast (d) a towel for spills
27. 27.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) turmeric powder (d) small test objects
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) small test objects (d) a tub of water
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a balloon (d) a magnet
31. 31.⚖️ 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 keep it the same (c) we change it
32. 32.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
34. 34.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a glass marble (d) a piece of thermocol
35. 35.⚖️ 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
36. 36.True or false: a dry leaf floats on water. (a) False (b) True
37. 37.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
38. 38.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
39. 39.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a dry leaf (c) a ping-pong ball (d) a steel spoon
40. 40.🛟 Which of these floats on water? (a) a metal key (b) a dry leaf (c) a pebble (d) a coin

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