Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 452 · 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.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
2. 2.🛟 Which of these floats on water? (a) an ice cube (b) a ball of clay (c) a metal key (d) a coin
3. 3.True or false: a cork floats on water. (a) True (b) False
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a tub of water (d) a magnet
6. 6.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
7. 7.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
8. 8.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
9. 9.True or false: a coin floats on water. (a) False (b) True
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a mirror (d) a results table
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) small test objects (d) a towel for spills
12. 12.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
13. 13.⚖️ 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 amount of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
14. 14.⚖️ 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 measure it (c) we change it
15. 15.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
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 change it (b) we measure it (c) we keep it the same
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
18. 18.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
19. 19.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
20. 20.⚖️ 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
21. 21.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
22. 22.⚖️ 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) False (b) True
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ 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) True (b) False
25. 25.True or false: an ice cube sinks in water. (a) True (b) False
26. 26.True or false: turmeric powder is 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? What do we do with “the tub of water”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) small test objects (d) turmeric powder
29. 29.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a cork (d) a pebble
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a tub of water (d) a towel for spills
31. 31.⚖️ 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) False (b) True
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) yeast
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
34. 34.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) a towel for spills (d) small test objects
36. 36.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a piece of thermocol (c) an ice cube (d) an iron nail
37. 37.🛟 Which of these floats on water? (a) a dry leaf (b) a ball of clay (c) a steel spoon (d) an iron nail
38. 38.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
39. 39.⚖️ 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
40. 40.True or false: a coin sinks in water. (a) True (b) False

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