Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 940 · 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.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
3. 3.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) an iron nail (d) an empty capped bottle
4. 4.⚖️ 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 kind of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
5. 5.🧺 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 tub of water
6. 6.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a mirror (d) turmeric powder
9. 9.⚖️ 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
10. 10.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
11. 11.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
12. 12.True or false: a dry leaf floats on water. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a ball of clay (b) an ice cube (c) a feather (d) an ice-cream stick
14. 14.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) a feather (d) a cork
15. 15.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a feather (d) an iron nail
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) yeast
17. 17.🛟 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 keep children safe (d) to hide the corks
18. 18.⚖️ 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
19. 19.True or false: a dry leaf sinks in water. (a) False (b) True
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) turmeric powder
21. 21.🛟 Which of these floats on water? (a) a metal key (b) a ping-pong ball (c) a coin (d) a glass marble
22. 22.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) an ice cube (d) an iron nail
23. 23.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
25. 25.True or false: an ice-cream stick sinks in water. (a) True (b) False
26. 26.🧺 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 tub of water (d) a mirror
27. 27.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a coin (d) an ice cube
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) yeast (d) a towel for spills
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
33. 33.⚖️ 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) True (b) False
34. 34.True or false: a ping-pong ball floats on water. (a) True (b) False
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a balloon (d) a results table
36. 36.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) yeast (d) a battery cell
38. 38.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
39. 39.True or false: a glass marble sinks in water. (a) False (b) True
40. 40.⚖️ 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) True (b) False

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