Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 145 · 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.True or false: an ice-cream stick floats on water. (a) False (b) True
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 kept the same. (a) False (b) True
3. 3.True or false: a metal key sinks in water. (a) False (b) True
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a magnet (d) a tub of water
5. 5.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
8. 8.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
10. 10.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
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 shape of the clay (b) the tub of water (c) the amount of clay (d) whether it floats
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) yeast (d) a battery cell
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
14. 14.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
15. 15.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
16. 16.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
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 results table (c) a towel for spills (d) turmeric powder
19. 19.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
20. 20.True or false: an ice cube floats on water. (a) False (b) True
21. 21.True or false: a piece of thermocol sinks in water. (a) True (b) False
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a tub of water (d) a towel for spills
23. 23.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
24. 24.True or false: a dry leaf sinks in water. (a) False (b) True
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a results table (d) a tub of water
26. 26.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) a coin (d) a cork
27. 27.🔍 Which is the odd one out? (a) an empty capped bottle (b) a dry leaf (c) an ice cube (d) a coin
28. 28.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
29. 29.🧺 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
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a towel for spills (d) a battery cell
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
33. 33.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
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) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
35. 35.🔮 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
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) a little shaking (d) more plain water
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
38. 38.🧺 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) small test objects (d) a magnet
39. 39.🧺 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) a battery cell
40. 40.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False

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