Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 545 · 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 glass marble 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 turns blue (b) it melts (c) it sinks (d) it floats higher
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) a tub of water (d) a results table
4. 4.⚖️ 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
5. 5.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
6. 6.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
7. 7.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a results table (d) small test objects
10. 10.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
11. 11.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
12. 12.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) an iron nail (d) a dry leaf
13. 13.⚖️ 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
14. 14.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a battery cell (d) a towel for spills
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a magnet (d) a battery cell
19. 19.🛟 Does a cork float or sink in water? (a) floats (b) sinks
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
21. 21.⚖️ 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 amount of clay (c) whether it floats (d) the shape of the clay
22. 22.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
23. 23.🧺 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 tub of water (d) a balloon
24. 24.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
25. 25.True or false: an iron nail sinks in water. (a) True (b) False
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet
27. 27.⚖️ 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
28. 28.True or false: a dry leaf sinks in water. (a) True (b) False
29. 29.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
30. 30.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
32. 32.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
33. 33.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
37. 37.True or false: a ball of clay floats on water. (a) True (b) False
38. 38.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
39. 39.⚖️ 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
40. 40.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) an empty capped bottle (d) a steel spoon

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