Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 647 · 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.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
2. 2.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
3. 3.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) a funnel
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it sinks to the bottom (d) it dissolves
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) sand and pebbles (d) a battery cell
7. 7.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
8. 8.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) cotton or cloth (d) a balloon
10. 10.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
11. 11.True or false: gravel from fine sand is done by sieving. (a) False (b) True
12. 12.⚖️ 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 muddy water (b) the amount poured (c) the same funnel (d) the filter material
13. 13.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
14. 14.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) salt from sea water (c) husk from rice grain (d) small stones from dal
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
16. 16.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) a clean glass (d) sand and pebbles
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) yeast
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a funnel (c) a clean glass (d) muddy water
21. 21.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) sieving (d) filtering
22. 22.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) filtering (d) handpicking
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a clean glass (d) a funnel
25. 25.🫗 How do we separate mud from water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
26. 26.True or false: small stones from dal is done by handpicking. (a) False (b) True
27. 27.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
31. 31.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) winnowing (d) evaporating
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) muddy water (d) a clean glass
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
36. 36.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
39. 39.🔮 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
40. 40.True or false: mud from water is done by filtering. (a) False (b) True

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