Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 350 · 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.🛟 Which of these floats on water? (a) a coin (b) a pebble (c) a ball of clay (d) an empty capped bottle
2. 2.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a ball of clay (d) an ice-cream stick
3. 3.🔮 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
4. 4.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
5. 5.🛟 Does a feather float or sink in water? (a) sinks (b) floats
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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the amount of clay
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🛟 Does a coin float or sink in water? (a) floats (b) sinks
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) turmeric powder (d) a results table
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
14. 14.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
15. 15.True or false: an ice-cream stick floats on water. (a) False (b) True
16. 16.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
17. 17.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
18. 18.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a battery cell (d) a results table
20. 20.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
21. 21.🛟 Which of these sinks in water? (a) a feather (b) an ice-cream stick (c) a dry leaf (d) a coin
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 kept the same. (a) False (b) True
23. 23.True or false: a ball of clay floats on water. (a) False (b) True
24. 24.🧺 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
25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
26. 26.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
27. 27.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a balloon
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) turmeric powder
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) yeast (d) a magnet
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it turns to stone (d) it sinks faster
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
36. 36.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
37. 37.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a metal key (d) an ice cube
38. 38.⚖️ 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 measure it (b) we keep it the same (c) we change it
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a balloon (d) small test objects
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a results table (d) a towel for spills

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