Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 440 · 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.🧺 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 towel for spills (d) a magnet
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) small test objects (d) a towel for spills
3. 3.⚖️ 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) True (b) False
4. 4.🔍 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
5. 5.⚖️ 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 keep it the same (b) we measure it (c) we change it
6. 6.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
7. 7.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a balloon (d) a magnet
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) small test objects (d) a tub of water
11. 11.True or false: a cork sinks in water. (a) True (b) False
12. 12.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
13. 13.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
14. 14.⚖️ 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 keep it the same (b) we change it (c) we measure it
15. 15.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
16. 16.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) it has a magnet (d) sea water is warm
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
18. 18.🛟 Which of these floats on water? (a) a cork (b) an iron nail (c) a coin (d) a steel spoon
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) a cork (d) a coin
20. 20.🧺 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) turmeric powder (d) a towel for spills
21. 21.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) an empty capped bottle (d) a pebble
22. 22.⚖️ 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
23. 23.⚖️ 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 tub of water (c) the shape of the clay
24. 24.True or false: a dry leaf sinks in water. (a) True (b) False
25. 25.🧺 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 battery cell (d) a towel for spills
26. 26.True or false: a coin sinks in water. (a) False (b) True
27. 27.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the air above (d) the cork itself
28. 28.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a magnet (d) a results table
30. 30.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
31. 31.🔮 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
32. 32.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
33. 33.True or false: a feather sinks in water. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a piece of thermocol (b) a pebble (c) an ice cube (d) a dry leaf
35. 35.⚖️ 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 measure it (c) we change it
36. 36.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) a metal key (d) a feather
37. 37.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
38. 38.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
39. 39.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a piece of thermocol (d) an iron nail
40. 40.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed

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