Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 829 · 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 results table for the float-or-sink test? (a) not needed (b) needed
2. 2.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the air above (d) the cork itself
3. 3.⚖️ 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 kind of clay (c) whether it floats
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a results table (d) a tub of water
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
6. 6.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
7. 7.🧺 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 balloon (d) a towel for spills
8. 8.🛟 Which of these sinks in water? (a) a feather (b) a piece of thermocol (c) a cork (d) a ball of clay
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a magnet (d) a towel for spills
10. 10.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
12. 12.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
13. 13.🛟 Which of these sinks in water? (a) a steel spoon (b) an empty capped bottle (c) an ice-cream stick (d) a piece of thermocol
14. 14.⚖️ 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
15. 15.🛟 Which of these sinks in water? (a) a cork (b) a feather (c) an ice-cream stick (d) a pebble
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) turmeric powder
17. 17.True or false: a feather floats on water. (a) False (b) True
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a mirror (d) a battery cell
20. 20.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
21. 21.True or false: a metal key sinks in water. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) an empty capped bottle (d) a steel spoon
23. 23.True or false: an iron nail sinks in water. (a) False (b) True
24. 24.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
25. 25.🔮 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
26. 26.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
27. 27.⚖️ 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 amount of clay (b) the shape of the clay (c) the tub of water (d) the kind of clay
28. 28.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
29. 29.⚖️ 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 keep it the same (b) we change it (c) we measure it
30. 30.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an iron nail (d) an empty capped bottle
31. 31.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a balloon (d) a results table
33. 33.True or false: an ice cube floats on water. (a) False (b) True
34. 34.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
35. 35.🧺 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 mirror
36. 36.⚖️ 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
37. 37.🛟 Which of these floats on water? (a) a dry leaf (b) a metal key (c) a pebble (d) a glass marble
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) turmeric powder (d) a results table
39. 39.⚖️ 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) whether it floats (c) the amount of clay (d) the shape of the clay
40. 40.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True

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