Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 243 · 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.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
2. 2.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
3. 3.🛟 Which of these sinks in water? (a) an ice cube (b) a dry leaf (c) a ping-pong ball (d) an iron nail
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
5. 5.🔮 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 sinks faster (d) it turns to stone
6. 6.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
7. 7.⚖️ 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
8. 8.🧺 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 results table (d) a balloon
9. 9.⚖️ 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
10. 10.True or false: a ball of clay floats on water. (a) False (b) True
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) steel is very light (d) sea water is warm
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) a magnet (d) a results table
13. 13.🧺 Do we need turmeric powder 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? True or false: the shape of the clay is the one thing we change. (a) True (b) False
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
17. 17.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
18. 18.⚖️ 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
19. 19.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a piece of thermocol (d) a glass marble
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) an iron nail (d) a cork
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 what we measure. (a) False (b) True
23. 23.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
24. 24.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a feather (d) a metal key
25. 25.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
26. 26.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
27. 27.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
28. 28.⚖️ 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) True (b) False
29. 29.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) turmeric powder
31. 31.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
32. 32.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
33. 33.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a feather (d) a ball of clay
34. 34.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) a results table (d) a towel for spills
36. 36.⚖️ 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 shape of the clay (b) whether it floats (c) the tub of water (d) the amount of clay
37. 37.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a steel spoon (c) a piece of thermocol (d) a dry leaf
38. 38.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the tub (d) the cork itself
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
40. 40.⚖️ 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

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