Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 723 · 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? 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
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it turns to stone (d) it sinks faster
3. 3.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
4. 4.⚖️ 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) whether it floats (c) the kind of clay (d) the amount of clay
5. 5.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
6. 6.⚖️ 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
7. 7.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) yeast (d) turmeric powder
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
12. 12.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
13. 13.True or false: a ping-pong ball sinks in water. (a) True (b) False
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a results table (d) a tub of water
15. 15.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
16. 16.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) an ice-cream stick (d) a metal key
17. 17.⚖️ 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) False (b) True
18. 18.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) an empty capped bottle (d) a coin
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
21. 21.🛟 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
22. 22.⚖️ 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
23. 23.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) a steel spoon (d) a ping-pong ball
24. 24.🔍 Which is the odd one out? (a) an iron nail (b) a pebble (c) a dry leaf (d) a metal key
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a results table (d) a towel for spills
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
27. 27.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) yeast (d) a towel for spills
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) turmeric powder (d) small test objects
30. 30.True or false: a dry leaf sinks in water. (a) True (b) False
31. 31.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
32. 32.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) yeast
34. 34.True or false: a coin sinks in water. (a) False (b) True
35. 35.🧺 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 mirror
36. 36.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) small test objects (d) a towel for spills
38. 38.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a metal key (d) an ice cube
39. 39.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a coin (d) an empty capped bottle
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm

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