Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 634 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
2. 2.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) an ice cube (d) a glass marble
3. 3.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a ping-pong ball (c) a coin (d) a dry leaf
4. 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
5. 5.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
7. 7.⚖️ 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
8. 8.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
9. 9.True or false: a steel spoon sinks in water. (a) True (b) False
10. 10.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
13. 13.⚖️ 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 shape of the clay (c) whether it floats (d) the tub of water
14. 14.True or false: an ice-cream stick floats on water. (a) True (b) False
15. 15.True or false: a glass marble floats on water. (a) False (b) True
16. 16.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a pebble (d) a dry leaf
17. 17.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a balloon (d) a tub of water
19. 19.🛟 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 hide the corks (d) to keep children safe
20. 20.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) an iron nail (d) an empty capped bottle
21. 21.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ping-pong ball (c) an ice-cream stick (d) a ball of clay
22. 22.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
23. 23.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) yeast (d) turmeric powder
25. 25.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
26. 26.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a ping-pong ball (d) a steel spoon
27. 27.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
28. 28.⚖️ 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
29. 29.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
30. 30.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a cork (d) an iron nail
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) turmeric powder (d) a tub of water
32. 32.True or false: a metal key sinks in water. (a) False (b) True
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) small test objects (d) a results table
35. 35.🛟 Does a feather float or sink in water? (a) floats (b) sinks
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) small test objects (d) a towel for spills
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
38. 38.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
39. 39.⚖️ 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) True (b) False
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) small test objects (d) yeast

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