Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 86 · 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 cork sinks in water. (a) True (b) False
2. 2.⚖️ 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
3. 3.⚖️ 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) True (b) False
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
5. 5.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
6. 6.⚖️ 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 keep it the same (b) we measure it (c) we change it
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a battery cell (d) a towel for spills
10. 10.True or false: a coin sinks in water. (a) True (b) False
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a battery cell (d) a results table
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) turmeric powder (d) small test objects
13. 13.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a glass marble (d) an iron nail
14. 14.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
15. 15.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
16. 16.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) an ice-cream stick (d) a metal key
17. 17.🧺 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 magnet (d) a tub of water
18. 18.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
20. 20.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an empty capped bottle (d) a pebble
22. 22.🔍 Which is the odd one out? (a) a steel spoon (b) a feather (c) a glass marble (d) an iron nail
23. 23.⚖️ 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 kind of clay (c) the tub of water (d) the shape of the clay
24. 24.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a feather (c) an ice cube (d) a ball of clay
25. 25.🧺 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 mirror (d) a results table
26. 26.True or false: a feather floats on water. (a) True (b) False
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a results table (d) small test objects
28. 28.⚖️ 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) the amount of clay (c) the shape of the clay (d) whether it floats
29. 29.⚖️ 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 keep it the same (c) we measure it
30. 30.🧺 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 tub of water (d) yeast
31. 31.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a results table
33. 33.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a towel for spills (d) small test objects
35. 35.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
36. 36.🛟 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
37. 37.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) turmeric powder (d) a tub of water
39. 39.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
40. 40.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble

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