Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 904 · 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? True or false: the shape of the clay is what we measure. (a) False (b) True
2. 2.⚖️ 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) whether it floats (d) the shape of the clay
3. 3.🧺 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
4. 4.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
5. 5.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
6. 6.🧺 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 mirror (d) a results table
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
8. 8.⚖️ 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) False (b) True
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a magnet (d) a tub of water
10. 10.🔍 Which is the odd one out? (a) an ice-cream stick (b) a feather (c) an iron nail (d) an ice cube
11. 11.True or false: a dry leaf sinks in water. (a) False (b) True
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
14. 14.🧺 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 results table (d) yeast
15. 15.⚖️ 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) the tub of water (c) whether it floats
16. 16.🛟 Does a cork float or sink in water? (a) sinks (b) floats
17. 17.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a glass marble (c) an ice-cream stick (d) an empty capped bottle
18. 18.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
19. 19.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
20. 20.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) an ice cube (d) a steel spoon
21. 21.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
22. 22.⚖️ 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 shape of the clay (c) the amount of clay (d) whether it floats
23. 23.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
24. 24.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it bounces up (d) it floats
25. 25.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) its hollow shape (d) it has a magnet
26. 26.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
27. 27.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) yeast (d) a results table
29. 29.⚖️ 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) whether it floats (c) the shape of the clay
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a battery cell (d) a tub of water
31. 31.🛟 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
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a tub of water (d) a results table
33. 33.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
36. 36.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a mirror (d) yeast
38. 38.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
39. 39.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
40. 40.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) a ping-pong ball (d) a pebble

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