Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 658 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
3. 3.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
4. 4.⚖️ 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
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) yeast
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a towel for spills (d) small test objects
8. 8.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) a dry leaf (d) a feather
9. 9.🔍 Which is the odd one out? (a) an empty capped bottle (b) a glass marble (c) a dry leaf (d) an ice-cream stick
10. 10.True or false: a pebble floats on water. (a) True (b) False
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
15. 15.🧺 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 towel for spills (d) a tub of water
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) a balloon
17. 17.⚖️ 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
18. 18.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
19. 19.🛟 Which of these floats on water? (a) an ice cube (b) a metal key (c) a coin (d) a glass marble
20. 20.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
21. 21.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
22. 22.🧺 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 towel for spills
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a tub of water (d) yeast
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 kind of clay
25. 25.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) an ice cube (d) a ball of clay
26. 26.🛟 Which of these floats on water? (a) a metal key (b) a feather (c) a glass marble (d) a steel spoon
27. 27.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a glass marble (d) an ice-cream stick
28. 28.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) small test objects (d) a mirror
30. 30.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
31. 31.⚖️ 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) whether it floats (c) the amount of clay
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) small test objects (d) a tub of water
33. 33.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.True or false: a cork floats on water. (a) False (b) True
36. 36.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it sinks (d) it dissolves
38. 38.🛟 Which of these floats on water? (a) a cork (b) a ball of clay (c) a steel spoon (d) a coin
39. 39.🔮 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 turns to stone (d) it can float
40. 40.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed

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