Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 348 · 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.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a clean glass (d) a magnet
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) a funnel (d) cotton or cloth
5. 5.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
6. 6.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bran from wheat flour (c) gravel from fine sand (d) sugar from sugar water
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
8. 8.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
9. 9.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.⚖️ 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
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
13. 13.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
14. 14.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) winnowing (d) evaporating
15. 15.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
16. 16.True or false: husk from rice grain is done by evaporating. (a) True (b) False
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a mirror (d) a magnet
19. 19.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
20. 20.True or false: bad grains from rice is done by handpicking. (a) False (b) True
21. 21.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) mud from water (c) small stones from dal (d) bran from wheat flour
22. 22.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) bad grains from rice (c) gravel from fine sand (d) tea leaves from tea
23. 23.🫗 How do we separate gravel from fine sand? (a) handpicking (b) winnowing (c) sieving (d) evaporating
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) cotton or cloth (d) a clean glass
25. 25.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a funnel (d) a balloon
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the amount poured (c) the same funnel (d) how clear the water is
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) sand and pebbles (d) a battery cell
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
32. 32.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
33. 33.True or false: bad grains from rice is done by winnowing. (a) False (b) True
34. 34.🫗 How do we separate tea leaves from tea? (a) filtering (b) evaporating (c) sieving (d) handpicking
35. 35.True or false: bran from wheat flour is done by sieving. (a) True (b) False
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
37. 37.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🫗 Which of these is done by filtering? (a) husk from rice grain (b) gravel from fine sand (c) tea leaves from tea (d) salt from sea water
40. 40.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed

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