Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 158 · 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: a balloon is needed for the float-or-sink test. (a) False (b) True
2. 2.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a mirror
4. 4.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a balloon
6. 6.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a results table (d) small test objects
8. 8.🛟 Which of these floats on water? (a) a pebble (b) an ice cube (c) an iron nail (d) a metal key
9. 9.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice-cream stick (c) a pebble (d) an ice cube
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) turmeric powder (d) a magnet
12. 12.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
13. 13.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.⚖️ 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 shape of the clay (c) the amount of clay
17. 17.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) a ping-pong ball (d) a pebble
18. 18.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a towel for spills (d) a balloon
20. 20.⚖️ 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
21. 21.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
24. 24.⚖️ 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 shape of the clay (b) whether it floats (c) the tub of water (d) the amount of clay
25. 25.⚖️ 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) True (b) False
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) turmeric powder
27. 27.⚖️ 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
28. 28.True or false: a dry leaf sinks in water. (a) True (b) False
29. 29.🛟 Does a feather float or sink in water? (a) sinks (b) floats
30. 30.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an iron nail (d) an empty capped bottle
31. 31.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice cube (c) a steel spoon (d) an ice-cream stick
32. 32.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
33. 33.🧺 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
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a battery cell
36. 36.⚖️ 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
37. 37.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
38. 38.True or false: an iron nail sinks in water. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) an ice cube (d) a dry leaf
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a tub of water (d) a results table

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