Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 93 · 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? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) yeast (d) cotton or cloth
5. 5.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) small stones from dal (c) gravel from fine sand (d) tea leaves from tea
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) yeast (d) muddy water
7. 7.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the amount poured (c) how clear the water is (d) the filter material
9. 9.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
11. 11.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) winnowing (d) filtering
12. 12.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
13. 13.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
14. 14.True or false: yeast is needed for the muddy water filter. (a) True (b) False
15. 15.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) turmeric powder (d) a clean glass
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
18. 18.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ 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 measure it (c) we change it
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) yeast (d) a magnet
23. 23.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) mud from water (c) husk from rice grain (d) small stones from dal
24. 24.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
25. 25.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
29. 29.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
30. 30.🫗 How do we separate mud from water? (a) handpicking (b) sieving (c) evaporating (d) filtering
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) a clean glass (d) muddy water
32. 32.⚖️ 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) True (b) False
33. 33.🫗 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
34. 34.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) winnowing (d) sieving
35. 35.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) cotton or cloth
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
38. 38.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) muddy water (d) a funnel
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a balloon (d) cotton or cloth

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