Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 151 · 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 tub of water for the float-or-sink test? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a magnet (d) turmeric powder
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a tub of water (d) small test objects
5. 5.⚖️ 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
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
7. 7.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
8. 8.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) an empty capped bottle (d) a coin
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) a magnet
10. 10.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a balloon (d) a tub of water
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 change it (b) we keep it the same (c) we measure it
13. 13.True or false: a ball of clay floats on water. (a) True (b) False
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it turns to stone (d) it sinks faster
15. 15.⚖️ 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) True (b) False
16. 16.🚢 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
17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
18. 18.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) turmeric powder (d) a mirror
20. 20.⚖️ 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
21. 21.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
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 tub of water (c) a results table (d) turmeric powder
26. 26.⚖️ 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) False (b) True
27. 27.True or false: a ping-pong ball sinks in water. (a) False (b) True
28. 28.🔮 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
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) small test objects (d) a tub of water
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a results table
31. 31.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
32. 32.🛟 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
33. 33.True or false: an iron nail floats on water. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a cork (d) an iron nail
35. 35.⚖️ 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 kind of clay (c) the amount of clay (d) whether it floats
36. 36.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a metal key (d) a dry leaf
37. 37.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
38. 38.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
39. 39.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
40. 40.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False

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