Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 741 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the filter material (d) the same glass
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a balloon (d) a funnel
4. 4.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) tea leaves from tea (c) salt from sea water (d) small stones from dal
5. 5.🫗 How do we separate tea leaves from tea? (a) sieving (b) evaporating (c) filtering (d) winnowing
6. 6.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
9. 9.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the same muddy water (c) the filter material (d) how clear the water is
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) a funnel (d) cotton or cloth
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) handpicking (d) winnowing
18. 18.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
24. 24.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
26. 26.True or false: salt from sea water is done by evaporating. (a) False (b) True
27. 27.🫗 Which of these is done by filtering? (a) bad grains from rice (b) salt from sea water (c) mud from water (d) bran from wheat flour
28. 28.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) sand and pebbles (d) a battery cell
30. 30.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) handpicking (d) evaporating
31. 31.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
32. 32.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
33. 33.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
36. 36.True or false: husk from rice grain is done by evaporating. (a) True (b) False
37. 37.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a battery cell (d) a clean glass
40. 40.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing

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