Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 438 · 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.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
2. 2.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
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.🧺 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) small test objects
5. 5.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
6. 6.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
7. 7.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Does a coin float or sink in water? (a) sinks (b) floats
9. 9.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
10. 10.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
11. 11.⚖️ 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) False (b) True
12. 12.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
13. 13.⚖️ 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 keep it the same (b) we change it (c) we measure it
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a balloon (d) yeast
15. 15.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
16. 16.⚖️ 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
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 measure it (b) we change it (c) we keep it the same
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) True (b) False
19. 19.🛟 Which of these sinks in water? (a) a metal key (b) an ice-cream stick (c) a feather (d) a cork
20. 20.⚖️ 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 kind of clay (c) the shape of the clay (d) the tub of water
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) yeast (d) a towel for spills
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) a results table (d) small test objects
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
24. 24.🛟 Which of these floats on water? (a) a glass marble (b) an ice cube (c) a ball of clay (d) a steel spoon
25. 25.🛟 Does a cork float or sink in water? (a) floats (b) sinks
26. 26.🔮 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
27. 27.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a coin (d) a dry leaf
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet
29. 29.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) an iron nail (b) a feather (c) a ping-pong ball (d) a dry leaf
31. 31.True or false: a metal key floats on water. (a) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
33. 33.True or false: a dry leaf sinks in water. (a) False (b) True
34. 34.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
35. 35.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
36. 36.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a cork (d) a coin
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) small test objects (d) a tub of water
38. 38.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a glass marble (d) a coin
39. 39.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) a steel spoon (d) a piece of thermocol
40. 40.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids