Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 454 · 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 is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
2. 2.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
4. 4.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
5. 5.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
6. 6.⚖️ 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 shape of the clay (c) the tub of water (d) whether it floats
7. 7.True or false: an empty capped bottle sinks in water. (a) False (b) True
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the tub of water (c) the shape of the clay
9. 9.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
10. 10.⚖️ 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) True (b) False
11. 11.🧺 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) turmeric powder
12. 12.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.🔍 Which is the odd one out? (a) a ping-pong ball (b) a dry leaf (c) a feather (d) an iron nail
16. 16.🧺 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 battery cell (d) a tub of water
17. 17.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
18. 18.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
19. 19.True or false: a cork floats on water. (a) False (b) True
20. 20.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 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 magnet
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
23. 23.True or false: small test objects is 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 shape of the clay is the one thing we change. (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 tub of water”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) a ball of clay (d) a ping-pong ball
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) small test objects (d) a towel for spills
29. 29.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a results table
35. 35.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
36. 36.True or false: a cork sinks in water. (a) False (b) True
37. 37.🧺 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 towel for spills (d) small test objects
38. 38.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) turmeric powder (d) a mirror
40. 40.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water

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