Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 629 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
2. 2.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
3. 3.⚖️ 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) whether it floats (c) the shape of the clay (d) the tub of water
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a battery cell (d) turmeric powder
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a results table (d) yeast
7. 7.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
8. 8.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
9. 9.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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 measure it (b) we change it (c) we keep it the same
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) yeast
12. 12.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) it has a magnet (d) sea water is warm
13. 13.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) an iron nail (d) a glass marble
14. 14.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a metal key (d) a dry leaf
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a tub of water (d) a results table
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
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) True (b) False
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) small test objects (d) a tub of water
21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a dry leaf (d) an iron nail
22. 22.⚖️ 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 measure it (b) we change it (c) we keep it the same
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
24. 24.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a ball of clay (d) a coin
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a tub of water (d) small test objects
27. 27.⚖️ 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) the tub of water (c) whether it floats
28. 28.⚖️ 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
29. 29.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a balloon
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a results table (d) small test objects
32. 32.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
33. 33.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
34. 34.🛟 Which of these sinks in water? (a) a glass marble (b) a dry leaf (c) a piece of thermocol (d) an ice cube
35. 35.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
39. 39.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
40. 40.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks

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