Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 344 · 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 turmeric powder for the float-or-sink test? (a) not needed (b) needed
2. 2.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
5. 5.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
6. 6.🛟 Which of these sinks in water? (a) a coin (b) a dry leaf (c) an ice cube (d) a cork
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
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 battery cell (d) small test objects
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
10. 10.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
11. 11.⚖️ 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
12. 12.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
13. 13.True or false: an ice-cream stick floats on water. (a) False (b) True
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a balloon (c) turmeric powder (d) yeast
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
16. 16.⚖️ 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 amount of clay (d) the tub of water
17. 17.⚖️ 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
18. 18.True or false: an iron nail sinks in water. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a dry leaf (b) an iron nail (c) a metal key (d) a glass marble
20. 20.⚖️ 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 change it (b) we keep it the same (c) we measure it
21. 21.True or false: an empty capped bottle sinks in water. (a) False (b) True
22. 22.🧺 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 results table (d) turmeric powder
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a balloon (d) a mirror
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a results table (d) a towel for spills
26. 26.True or false: a glass marble sinks in water. (a) True (b) False
27. 27.🛟 Which of these floats on water? (a) a ball of clay (b) a ping-pong ball (c) a glass marble (d) a metal key
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the amount of clay (d) whether it floats
30. 30.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a mirror (d) a tub of water
32. 32.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
33. 33.⚖️ 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
34. 34.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a ball of clay (c) a feather (d) a glass marble
36. 36.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
37. 37.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) an ice cube (d) a glass marble
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a balloon
39. 39.True or false: a piece of thermocol sinks in water. (a) False (b) True
40. 40.🔮 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

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