Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 954 · 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 mirror for the float-or-sink test? (a) needed (b) not needed
2. 2.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.True or false: a metal key sinks in water. (a) True (b) False
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) neither of them (d) the small pebble
8. 8.🛟 Which of these floats on water? (a) a dry leaf (b) a glass marble (c) a steel spoon (d) a pebble
9. 9.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a mirror (d) turmeric powder
11. 11.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) an empty capped bottle (d) a metal key
12. 12.⚖️ 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) True (b) False
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
14. 14.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
15. 15.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
16. 16.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a steel spoon (d) an ice-cream stick
17. 17.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
18. 18.⚖️ 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 change it (c) we measure it
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.True or false: an ice-cream stick floats on water. (a) True (b) False
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a battery cell (d) a towel for spills
22. 22.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) an ice cube (d) a coin
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a battery cell
25. 25.True or false: an ice-cream stick sinks in water. (a) True (b) False
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
27. 27.True or false: a glass marble floats on water. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a towel for spills (d) small test objects
29. 29.🔍 Which is the odd one out? (a) a dry leaf (b) a metal key (c) an empty capped bottle (d) an ice-cream stick
30. 30.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a coin (d) a feather
31. 31.🛟 Does a coin float or sink in water? (a) sinks (b) floats
32. 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
33. 33.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
34. 34.⚖️ 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 shape of the clay (c) the amount of clay
35. 35.True or false: an iron nail sinks in water. (a) True (b) False
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
37. 37.🔮 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
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🔍 Which is the odd one out? (a) a ball of clay (b) a cork (c) an empty capped bottle (d) a ping-pong ball
40. 40.True or false: yeast is needed for the float-or-sink test. (a) True (b) False

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