Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 786 · 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) True (b) False
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
3. 3.🛟 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
4. 4.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
5. 5.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
6. 6.⚖️ 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) the kind of clay (c) whether it floats (d) the tub of water
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 amount of clay (b) whether it floats (c) the shape of the clay
8. 8.🧺 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 results table (d) a balloon
9. 9.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
11. 11.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
12. 12.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) a pebble (d) a coin
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) yeast (d) turmeric powder
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
15. 15.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) a glass marble (d) an ice-cream stick
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
17. 17.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a steel spoon (c) a cork (d) an ice-cream stick
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 measure it (c) we change it
19. 19.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) an empty capped bottle (d) an iron nail
20. 20.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
21. 21.🛟 Which of these floats on water? (a) a steel spoon (b) a dry leaf (c) a coin (d) a glass marble
22. 22.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a mirror (d) a magnet
25. 25.🔮 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
26. 26.⚖️ 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
27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
28. 28.⚖️ 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
29. 29.🧺 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) small test objects (d) a magnet
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a results table (d) a towel for spills
31. 31.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a steel spoon (b) a metal key (c) a ball of clay (d) an empty capped bottle
33. 33.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a ball of clay (d) an empty capped bottle
35. 35.🔍 Which is the odd one out? (a) a dry leaf (b) a piece of thermocol (c) a feather (d) a metal key
36. 36.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
37. 37.True or false: a dry leaf floats on water. (a) False (b) True
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a tub of water (d) a towel for spills
39. 39.⚖️ 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 kind of clay (c) the shape of the clay
40. 40.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) a dry leaf (d) a coin

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