Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 317 · 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.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
2. 2.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a tub of water (d) a magnet
5. 5.True or false: an ice cube floats on water. (a) True (b) False
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a results table (d) a tub of water
7. 7.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a mirror (d) a towel for spills
10. 10.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
12. 12.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
13. 13.🛟 Does a feather float or sink in water? (a) floats (b) sinks
14. 14.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
15. 15.⚖️ 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) the kind of clay (c) the amount of clay (d) the shape of the clay
16. 16.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a magnet (d) a tub of water
18. 18.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
19. 19.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
20. 20.⚖️ 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
21. 21.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) an empty capped bottle (d) a steel spoon
22. 22.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
23. 23.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a magnet (d) a balloon
25. 25.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) an iron nail (d) an ice-cream stick
26. 26.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
27. 27.⚖️ 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
28. 28.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
29. 29.True or false: a ball of clay sinks in water. (a) False (b) True
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a results table (d) a tub of water
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a battery cell (d) a results table
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
33. 33.🔮 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
34. 34.⚖️ 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
35. 35.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
36. 36.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
38. 38.🧺 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) turmeric powder
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a balloon

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