Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 473 · 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 tub of water (b) yeast (c) a results table (d) small test objects
2. 2.⚖️ 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 measure it (c) we change it
3. 3.⚖️ 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 tub of water (c) the amount of clay (d) the shape of the clay
4. 4.True or false: a glass marble floats on water. (a) True (b) False
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
6. 6.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
7. 7.🚢 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
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a towel for spills (d) yeast
9. 9.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
10. 10.🛟 Does a feather float or sink in water? (a) sinks (b) floats
11. 11.⚖️ 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 tub of water (c) the shape of the clay (d) the kind of clay
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a magnet (d) a results table
13. 13.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
14. 14.True or false: a pebble floats on water. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a dry leaf (d) a glass marble
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
17. 17.True or false: small test objects is 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 tub of water”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
20. 20.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a balloon (d) a tub of water
22. 22.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
23. 23.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
24. 24.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
25. 25.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the cork itself (d) the water
26. 26.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.🛟 Which of these floats on water? (a) an iron nail (b) a feather (c) a pebble (d) a steel spoon
29. 29.🛟 Which of these floats on water? (a) a steel spoon (b) a dry leaf (c) a glass marble (d) a ball of clay
30. 30.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
31. 31.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) an ice cube (d) a cork
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
33. 33.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a magnet
35. 35.True or false: a steel spoon sinks in water. (a) True (b) False
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
37. 37.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a cork (d) a pebble
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a battery cell (d) small test objects
39. 39.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
40. 40.🔮 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 dissolves (d) it can float

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids