Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 184 · 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.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
2. 2.⚖️ 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
3. 3.⚖️ 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) True (b) False
4. 4.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
5. 5.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
6. 6.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the kind of clay (c) the shape of the clay
10. 10.⚖️ 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) whether it floats (c) the tub of water
11. 11.True or false: a glass marble floats on water. (a) True (b) False
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
14. 14.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) a ping-pong ball (d) a dry leaf
15. 15.🔮 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
16. 16.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) a towel for spills (d) yeast
18. 18.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a ball of clay (d) a feather
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a towel for spills (d) a tub of water
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) more plain water (d) a little shaking
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a results table (d) a towel for spills
23. 23.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a ping-pong ball (d) a coin
24. 24.⚖️ 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 keep it the same (b) we change it (c) we measure it
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) small test objects (d) a towel for spills
26. 26.🧺 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) a tub of water (d) a balloon
27. 27.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
28. 28.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
29. 29.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
30. 30.True or false: a coin floats on water. (a) False (b) True
31. 31.True or false: an ice cube sinks in water. (a) True (b) False
32. 32.⚖️ 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 measure it (c) we change it
33. 33.⚖️ 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) False (b) True
34. 34.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Which of these floats on water? (a) an ice cube (b) a metal key (c) a glass marble (d) a coin
36. 36.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a tub of water (d) a results table
38. 38.True or false: an empty capped bottle sinks in water. (a) True (b) False
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a results table (d) a mirror
40. 40.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) a piece of thermocol (d) a coin

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