Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 481 · 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) small test objects (b) a tub of water (c) a towel for spills (d) yeast
2. 2.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) a dry leaf (d) a ping-pong ball
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a magnet (d) a battery cell
4. 4.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
5. 5.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
6. 6.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) an ice cube (d) a metal key
7. 7.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a mirror
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it bounces up (d) it floats
10. 10.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
13. 13.🚢 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
14. 14.True or false: a ball of clay sinks in water. (a) False (b) True
15. 15.⚖️ 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) False (b) True
16. 16.🧺 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) a balloon
17. 17.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
18. 18.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
19. 19.🔍 Which is the odd one out? (a) a pebble (b) an empty capped bottle (c) an iron nail (d) a ball of clay
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) True (b) False
21. 21.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
23. 23.⚖️ 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
24. 24.⚖️ 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 tub of water
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a results table (d) a tub of water
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) yeast
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a results table (d) yeast
28. 28.True or false: a piece of thermocol floats on water. (a) True (b) False
29. 29.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
30. 30.True or false: a glass marble floats on water. (a) False (b) True
31. 31.🔮 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
32. 32.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
33. 33.🧺 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 results table (d) a tub of water
34. 34.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
35. 35.True or false: a steel spoon floats on water. (a) False (b) True
36. 36.⚖️ 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 change it (b) we measure it (c) we keep it the same
37. 37.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
38. 38.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
39. 39.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
40. 40.⚖️ 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

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