Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 875 · 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.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a results table (d) a towel for spills
3. 3.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
4. 4.🔍 Which is the odd one out? (a) a pebble (b) a dry leaf (c) a steel spoon (d) a ball of clay
5. 5.True or false: a steel spoon sinks in water. (a) True (b) False
6. 6.⚖️ 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) whether it floats (c) the kind of clay
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a towel for spills (d) a magnet
8. 8.⚖️ 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
9. 9.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
10. 10.⚖️ 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 amount of clay (c) the tub of water (d) the shape of the clay
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a towel for spills (d) a tub of water
12. 12.True or false: an ice-cream stick sinks in water. (a) True (b) False
13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the cork itself (d) the air above
16. 16.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
17. 17.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
18. 18.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
19. 19.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
20. 20.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
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 battery cell (c) small test objects (d) a results table
23. 23.🛟 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 hide the corks (d) to keep children safe
24. 24.⚖️ 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
25. 25.True or false: a feather sinks in water. (a) False (b) True
26. 26.True or false: a ping-pong ball floats on water. (a) False (b) True
27. 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
28. 28.🧺 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) turmeric powder (d) a results table
29. 29.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: a cork sinks in water. (a) True (b) False
32. 32.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a glass marble (c) a ping-pong ball (d) an ice cube
33. 33.True or false: a mirror is not 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? True or false: the shape of the clay is what we measure. (a) True (b) False
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a balloon (d) a results table
36. 36.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
37. 37.⚖️ 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
38. 38.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) an empty capped bottle (d) a feather
40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue

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