Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 557 · 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.⚖️ 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
2. 2.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
5. 5.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the water (d) the cork itself
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) turmeric powder (d) a towel for spills
7. 7.🧺 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) a results table (d) small test objects
8. 8.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) a results table (d) a tub of water
11. 11.True or false: a ball of clay floats on water. (a) True (b) False
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a balloon (d) a towel for spills
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a results table (c) small test objects (d) a tub of water
14. 14.⚖️ 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 kind of clay (c) the amount of clay (d) the shape of the clay
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
16. 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
17. 17.🧺 Do we need a battery cell 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? True or false: whether it floats is the one thing we change. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) an iron nail (d) a steel spoon
20. 20.🛟 Which of these sinks in water? (a) a feather (b) an iron nail (c) an ice-cream stick (d) an ice cube
21. 21.True or false: a piece of thermocol sinks in water. (a) False (b) True
22. 22.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
23. 23.True or false: a tub of water 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? Which of these is what we measure? (a) the shape of the clay (b) the tub of water (c) the amount of clay (d) whether it floats
25. 25.True or false: a piece of thermocol floats on water. (a) True (b) False
26. 26.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
27. 27.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) an ice cube (d) a steel spoon
28. 28.⚖️ 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) the amount of clay (c) whether it floats
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
31. 31.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
32. 32.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a tub of water (d) a battery cell
34. 34.⚖️ 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) the tub of water (c) whether it floats
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a mirror
36. 36.True or false: an empty capped bottle sinks in water. (a) False (b) True
37. 37.🛟 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
38. 38.True or false: an ice-cream stick sinks in water. (a) False (b) True
39. 39.⚖️ 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 measure it (c) we keep it the same
40. 40.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) a ping-pong ball (d) an iron nail

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