Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 808 · 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 is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) small test objects (d) a balloon
2. 2.🧺 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
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
4. 4.⚖️ 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 tub of water (b) the shape of the clay (c) whether it floats (d) the amount of clay
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a battery cell (d) a mirror
6. 6.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a battery cell (c) a results table (d) a tub of water
8. 8.⚖️ 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 change it (c) we keep it the same
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
10. 10.🛟 Which of these sinks in water? (a) a ball of clay (b) an ice-cream stick (c) an empty capped bottle (d) a cork
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
12. 12.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a ping-pong ball (d) a pebble
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) a battery cell
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) run around the tub (d) play near a deep pond
15. 15.🛟 Which of these sinks in water? (a) a glass marble (b) a cork (c) a piece of thermocol (d) a ping-pong ball
16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
17. 17.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
18. 18.⚖️ 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 measure it (b) we change it (c) we keep it the same
19. 19.⚖️ 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 shape of the clay (c) whether it floats (d) the kind of clay
20. 20.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a towel for spills (c) small test objects (d) a tub of water
22. 22.True or false: a glass marble sinks in water. (a) False (b) True
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
24. 24.🧺 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) yeast (d) a tub of water
25. 25.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the cork itself (d) the air above
26. 26.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) a cork (d) a coin
27. 27.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
28. 28.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a metal key (b) an empty capped bottle (c) a glass marble (d) a coin
30. 30.⚖️ 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) False (b) True
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
32. 32.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) an ice cube (d) a metal key
33. 33.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
34. 34.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a tub of water (d) small test objects
36. 36.True or false: a dry leaf sinks in water. (a) True (b) False
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
38. 38.True or false: a feather sinks in water. (a) True (b) False
39. 39.True or false: a glass marble floats on water. (a) False (b) True
40. 40.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True

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