Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 218 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the same glass (d) the filter material
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
4. 4.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bran from wheat flour (c) tea leaves from tea (d) mud from water
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) sand and pebbles (d) cotton or cloth
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) cotton or cloth (d) a funnel
8. 8.⚖️ 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) True (b) False
9. 9.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
10. 10.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
11. 11.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
12. 12.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) husk from rice grain (c) mud from water (d) sugar from sugar water
13. 13.🫗 Which of these is done by evaporating? (a) salt from sea water (b) mud from water (c) small stones from dal (d) tea leaves from tea
14. 14.True or false: small stones from dal is done by handpicking. (a) True (b) False
15. 15.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
16. 16.True or false: yeast is needed for the muddy water filter. (a) True (b) False
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
18. 18.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
19. 19.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) muddy water (d) cotton or cloth
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) cotton or cloth (d) sand and pebbles
22. 22.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
25. 25.🫗 Which of these is done by handpicking? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) husk from rice grain
26. 26.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) turmeric powder (d) a magnet
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) a funnel (d) muddy water
28. 28.⚖️ 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
29. 29.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
30. 30.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) winnowing (d) handpicking
31. 31.True or false: husk from rice grain is done by evaporating. (a) True (b) False
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same glass (c) how clear the water is
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) a magnet (d) a balloon
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
35. 35.True or false: mud from water is done by filtering. (a) False (b) True
36. 36.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) a balloon (d) a magnet
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a clean glass (d) muddy water
38. 38.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) winnowing (d) sieving
39. 39.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
40. 40.⚖️ 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 measure it (b) we keep it the same (c) we change it

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