Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 153 · 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.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a balloon (d) sand and pebbles
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) muddy water (d) cotton or cloth
4. 4.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) gravel from fine sand (c) small stones from dal (d) salt from sea water
7. 7.⚖️ 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
8. 8.True or false: husk from rice grain is done by winnowing. (a) False (b) True
9. 9.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a magnet (d) a battery cell
15. 15.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) evaporating (d) handpicking
16. 16.⚖️ 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
17. 17.⚖️ 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 change it (c) we keep it the same
18. 18.⚖️ 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 filter material (c) the amount poured (d) the same funnel
19. 19.⚖️ 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) False (b) True
20. 20.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a funnel (d) turmeric powder
23. 23.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) salt from sea water (c) sugar from sugar water (d) small stones from dal
24. 24.🫗 Which of these is done by handpicking? (a) salt from sea water (b) chaff from wheat grain (c) husk from rice grain (d) bad grains from rice
25. 25.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
26. 26.🫗 Which of these is done by filtering? (a) bad grains from rice (b) tea leaves from tea (c) bran from wheat flour (d) husk from rice grain
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a funnel (d) cotton or cloth
28. 28.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) turmeric powder (d) a mirror
30. 30.True or false: bad grains from rice is done by handpicking. (a) False (b) True
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
32. 32.🫗 Which of these is done by filtering? (a) bad grains from rice (b) bran from wheat flour (c) mud from water (d) husk from rice grain
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) salt from sea water (c) tea leaves from tea (d) mud from water
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) muddy water
36. 36.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) gravel from fine sand (c) bad grains from rice (d) salt from sea water
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) a funnel (d) a battery cell
39. 39.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
40. 40.🔍 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

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