Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 550 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
2. 2.True or false: tea leaves from tea is done by filtering. (a) True (b) False
3. 3.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) sand and pebbles (d) a battery cell
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) muddy water (d) turmeric powder
6. 6.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
7. 7.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
9. 9.🛟 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
10. 10.🫗 Which of these is done by evaporating? (a) mud from water (b) sugar from sugar water (c) bran from wheat flour (d) bad grains from rice
11. 11.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) yeast (d) a balloon
12. 12.⚖️ 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) how clear the water is (c) the same funnel
13. 13.⚖️ 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
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
15. 15.⚖️ 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 keep it the same (b) we change it (c) we measure it
16. 16.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
17. 17.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) a balloon (d) sand and pebbles
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) the same muddy water (d) how clear the water is
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.True or false: husk from rice grain is done by handpicking. (a) False (b) True
22. 22.🫗 How do we separate chaff from wheat grain? (a) sieving (b) evaporating (c) winnowing (d) filtering
23. 23.🫗 Which of these is done by handpicking? (a) salt from sea water (b) gravel from fine sand (c) small stones from dal (d) chaff from wheat grain
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
25. 25.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) salt from sea water (d) tea leaves from tea
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
30. 30.⚖️ 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
31. 31.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) filtering (d) evaporating
32. 32.⚖️ 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) True (b) False
33. 33.⚖️ 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 funnel (b) the amount poured (c) the same muddy water (d) the filter material
34. 34.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) yeast (d) a clean glass
36. 36.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) small stones from dal (c) gravel from fine sand (d) chaff from wheat grain
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a battery cell
38. 38.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
39. 39.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier

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