Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 456 · 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.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
2. 2.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
5. 5.⚖️ 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 amount of clay (b) the shape of the clay (c) the tub of water (d) the kind of clay
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
7. 7.⚖️ 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
8. 8.True or false: an ice cube sinks in water. (a) False (b) True
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
10. 10.🛟 Which of these sinks in water? (a) a cork (b) a steel spoon (c) an ice cube (d) a dry leaf
11. 11.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
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 battery cell (c) a results table (d) small test objects
13. 13.🛟 Does a coin float or sink in water? (a) floats (b) sinks
14. 14.True or false: a feather sinks in water. (a) False (b) True
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a results table (d) small test objects
16. 16.⚖️ 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 keep it the same (b) we change it (c) we measure it
17. 17.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) a cork (d) a glass marble
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a towel for spills (d) small test objects
19. 19.⚖️ 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 change it (b) we measure it (c) we keep it the same
20. 20.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a dry leaf (c) a piece of thermocol (d) an iron nail
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.⚖️ 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
23. 23.🛟 Does a feather float or sink in water? (a) sinks (b) floats
24. 24.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
26. 26.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the amount of clay
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a results table (d) a towel for spills
29. 29.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) a ping-pong ball (d) an iron nail
30. 30.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
31. 31.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
32. 32.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
33. 33.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
35. 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
36. 36.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a magnet (d) small test objects
39. 39.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
40. 40.🔍 Which is the odd one out? (a) a ball of clay (b) a cork (c) a glass marble (d) an iron nail

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