Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 13 · 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 needed for the float-or-sink test. (a) True (b) False
2. 2.⚖️ 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) False (b) True
3. 3.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a ping-pong ball (c) a ball of clay (d) a dry leaf
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) turmeric powder
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
6. 6.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
8. 8.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
9. 9.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a battery cell (d) small test objects
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) yeast (d) small test objects
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a battery cell (d) a results table
14. 14.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
15. 15.🛟 Which of these floats on water? (a) a piece of thermocol (b) a coin (c) an iron nail (d) a glass marble
16. 16.🧺 Do we need a tub of water 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? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
18. 18.True or false: a tub of water 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? True or false: whether it floats is what we measure. (a) False (b) True
20. 20.True or false: a cork floats on water. (a) False (b) True
21. 21.🛟 Which of these sinks in water? (a) a feather (b) a steel spoon (c) a cork (d) a piece of thermocol
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a results table
23. 23.⚖️ 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
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a battery cell (d) a towel for spills
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a battery cell (d) a balloon
28. 28.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
29. 29.True or false: a feather floats on water. (a) False (b) True
30. 30.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
31. 31.True or false: an iron nail floats on water. (a) False (b) True
32. 32.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a glass marble (d) an ice cube
33. 33.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
34. 34.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
37. 37.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
38. 38.True or false: a pebble sinks in water. (a) False (b) True
39. 39.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the kind of clay

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