Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 135 · 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? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the tub of water
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
3. 3.⚖️ 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
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
5. 5.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of thermocol (c) a ball of clay (d) a pebble
7. 7.⚖️ 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
8. 8.True or false: a dry leaf sinks in water. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 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) a results table (d) yeast
11. 11.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) an iron nail (d) a steel spoon
12. 12.True or false: a feather floats on water. (a) False (b) True
13. 13.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
14. 14.🛟 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
15. 15.True or false: a cork sinks in water. (a) True (b) False
16. 16.🧺 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 results table (d) turmeric powder
17. 17.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
18. 18.🧺 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) a battery cell (d) small test objects
19. 19.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
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 tub of water (c) the shape of the clay (d) whether it floats
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.⚖️ 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) True (b) False
23. 23.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
24. 24.🔮 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 dissolves (d) it can float
25. 25.🔮 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
26. 26.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a results table (d) small test objects
28. 28.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
29. 29.🛟 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 splash everyone (d) to hide the corks
30. 30.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a metal key (d) a ping-pong ball
31. 31.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
33. 33.⚖️ 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
34. 34.⚖️ 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 tub of water (b) whether it floats (c) the amount of clay (d) the shape of the clay
35. 35.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
36. 36.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🧺 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 magnet (d) a towel for spills
39. 39.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) a ball of clay (d) an ice-cream stick

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