Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 133 · 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? Which of these is kept the same? (a) the filter material (b) the same glass (c) how clear the water is
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
3. 3.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
6. 6.True or false: husk from rice grain is done by winnowing. (a) True (b) False
7. 7.⚖️ 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 same funnel (c) how clear the water is (d) the same muddy water
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) turmeric powder (d) a magnet
9. 9.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bran from wheat flour (c) sugar from sugar water (d) husk from rice grain
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a balloon (d) sand and pebbles
11. 11.True or false: bad grains from rice is done by winnowing. (a) True (b) False
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.True or false: bad grains from rice is done by handpicking. (a) False (b) True
15. 15.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
16. 16.🔮 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
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a balloon
19. 19.True or false: gravel from fine sand is done by sieving. (a) False (b) True
20. 20.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
21. 21.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
22. 22.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
23. 23.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
24. 24.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) sieving (d) filtering
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the same glass (d) the filter material
26. 26.🫗 Which of these is done by sieving? (a) husk from rice grain (b) sugar from sugar water (c) small stones from dal (d) bran from wheat flour
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) muddy water
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) a funnel (d) a clean glass
30. 30.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) muddy water (c) cotton or cloth (d) a clean glass
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
33. 33.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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 measure it (c) we change it
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
36. 36.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) sieving (d) filtering
37. 37.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
38. 38.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
39. 39.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) winnowing (d) handpicking
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer

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