Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 373 · 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: an ice cube sinks in water. (a) True (b) False
2. 2.🔮 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
3. 3.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a towel for spills (d) small test objects
5. 5.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) yeast (d) a tub of water
7. 7.🧺 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 towel for spills (d) a results table
8. 8.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
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 towel for spills (c) small test objects (d) a balloon
10. 10.🛟 Which of these sinks in water? (a) a cork (b) a feather (c) an ice-cream stick (d) a coin
11. 11.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a pebble (d) an iron nail
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
13. 13.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
14. 14.⚖️ 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 keep it the same (c) we change it
15. 15.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
16. 16.⚖️ 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 keep it the same (b) we change it (c) we measure it
17. 17.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
18. 18.⚖️ 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 measure it (c) we change it
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
20. 20.🔮 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
21. 21.🧺 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) a tub of water (d) a mirror
22. 22.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
24. 24.⚖️ 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 shape of the clay (b) whether it floats (c) the amount of clay (d) the tub of water
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
27. 27.🧺 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) yeast (d) a results table
28. 28.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
29. 29.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
30. 30.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
31. 31.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
32. 32.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
33. 33.🛟 Which of these sinks in water? (a) a glass marble (b) a dry leaf (c) an empty capped bottle (d) an ice-cream stick
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) turmeric powder (d) a magnet
35. 35.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
36. 36.True or false: an ice-cream stick sinks in water. (a) True (b) False
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) an iron nail (d) a ping-pong ball
39. 39.True or false: a glass marble sinks in water. (a) False (b) True
40. 40.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True

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