Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 718 · 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 glass marble (b) a metal key (c) an iron nail (d) an ice-cream stick
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
3. 3.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
4. 4.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
6. 6.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
8. 8.🧺 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) turmeric powder (d) a towel for spills
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a pebble (b) a metal key (c) a feather (d) a ball of clay
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) a magnet (d) a balloon
12. 12.⚖️ 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
13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the kind of clay
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
17. 17.True or false: a ping-pong ball floats on water. (a) True (b) False
18. 18.⚖️ 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) True (b) False
19. 19.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: a glass marble sinks in water. (a) False (b) True
21. 21.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
22. 22.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
23. 23.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
24. 24.⚖️ 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
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) a few ice cubes (d) more plain water
26. 26.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
27. 27.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
28. 28.🛟 Which of these sinks in water? (a) a metal key (b) a ping-pong ball (c) an empty capped bottle (d) a piece of thermocol
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a feather (d) a coin
31. 31.⚖️ 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 tub of water (c) the shape of the clay (d) the kind of clay
32. 32.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
33. 33.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
34. 34.🧺 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) a battery cell
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) yeast (c) a balloon (d) turmeric powder
36. 36.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a mirror
38. 38.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
39. 39.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) small test objects

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