Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 727 · 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.⚖️ 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 tub of water (b) the kind of clay (c) whether it floats (d) the shape of the clay
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) a tub of water (d) small test objects
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
4. 4.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a magnet (d) a tub of water
6. 6.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
9. 9.⚖️ 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) False (b) True
10. 10.🛟 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 hide the corks (d) to splash everyone
11. 11.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.True or false: a glass marble sinks in water. (a) True (b) False
14. 14.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
15. 15.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
16. 16.⚖️ 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 change it (c) we measure it
17. 17.🧺 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 results table (d) a mirror
18. 18.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
19. 19.⚖️ 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
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
22. 22.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
23. 23.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
24. 24.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) a glass marble (d) an empty capped bottle
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) yeast
26. 26.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) whether it floats (c) the shape of the clay (d) the kind of clay
28. 28.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
29. 29.True or false: a metal key floats on water. (a) True (b) False
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
31. 31.True or false: a glass marble floats on water. (a) True (b) False
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a magnet (d) a tub of water
33. 33.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
34. 34.🧺 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) turmeric powder
35. 35.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) an ice-cream stick (d) a coin
36. 36.🛟 Which of these sinks in water? (a) an ice cube (b) a pebble (c) a cork (d) a feather
37. 37.🚢 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
38. 38.🔮 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
39. 39.🔍 Which is the odd one out? (a) a steel spoon (b) a metal key (c) a glass marble (d) a cork
40. 40.True or false: a cork floats on water. (a) True (b) False

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