Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 385 · 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.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
2. 2.True or false: a ball of clay floats on water. (a) False (b) True
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
5. 5.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a cork (d) a glass marble
6. 6.⚖️ 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 kind of clay (c) the amount of clay (d) whether it floats
7. 7.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
8. 8.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
9. 9.⚖️ 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
10. 10.True or false: a metal key floats on water. (a) False (b) True
11. 11.⚖️ 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 kind of clay (b) the amount of clay (c) the tub of water (d) the shape of the clay
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a towel for spills (d) a mirror
13. 13.🔍 Which is the odd one out? (a) a piece of thermocol (b) a dry leaf (c) a cork (d) a ball of clay
14. 14.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) a steel spoon (d) a coin
15. 15.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
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 keep it the same (b) we change it (c) we measure it
17. 17.True or false: a dry leaf floats on water. (a) False (b) True
18. 18.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
21. 21.🔍 Which is the odd one out? (a) a cork (b) a feather (c) a glass marble (d) a dry leaf
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a results table (d) small test objects
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) a mirror
25. 25.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
26. 26.🛟 Does a feather float or sink in water? (a) sinks (b) floats
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a mirror (d) turmeric powder
28. 28.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a steel spoon (d) a dry leaf
31. 31.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
32. 32.🧺 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) a results table (d) a towel for spills
33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a results table (d) a tub of water
35. 35.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
36. 36.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
37. 37.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) an iron nail (d) a dry leaf
38. 38.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
39. 39.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) small test objects (d) a tub of water

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