Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 94 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a balloon
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
4. 4.🛟 Which of these floats on water? (a) an empty capped bottle (b) a glass marble (c) a metal key (d) a ball of clay
5. 5.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) an empty capped bottle (d) a metal key
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a towel for spills (d) a mirror
7. 7.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
9. 9.🛟 Which of these sinks in water? (a) a dry leaf (b) a feather (c) an ice-cream stick (d) a coin
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a towel for spills (c) a results table (d) a tub of water
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) a results table (d) small test objects
12. 12.True or false: a glass marble sinks in water. (a) True (b) False
13. 13.🛟 Which of these sinks in water? (a) a cork (b) a glass marble (c) an ice-cream stick (d) a dry leaf
14. 14.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) a ball of clay (d) an ice cube
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) small test objects (d) yeast
16. 16.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
18. 18.🛟 Does a cork float or sink in water? (a) floats (b) sinks
19. 19.⚖️ 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) False (b) True
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
21. 21.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
22. 22.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
23. 23.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
24. 24.True or false: an ice-cream stick floats on water. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) a dry leaf (c) a ping-pong ball (d) an ice cube
26. 26.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) an ice cube (d) a glass marble
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) small test objects (d) a results table
28. 28.True or false: an ice cube floats on water. (a) False (b) True
29. 29.⚖️ 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
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) both of them (d) the small pebble
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) it has a magnet (d) steel is very light
33. 33.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) a ping-pong ball (d) a pebble
34. 34.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) an ice-cream stick (d) a pebble
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
36. 36.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) a tub of water (d) small test objects
39. 39.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
40. 40.🔮 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

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