Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 780 · 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.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a clean glass (d) turmeric powder
2. 2.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
3. 3.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
4. 4.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
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 change it (b) we measure it (c) we keep it the same
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the filter material (c) the amount poured (d) the same funnel
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a balloon
8. 8.🔮 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
9. 9.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bad grains from rice (c) tea leaves from tea (d) sugar from sugar water
10. 10.True or false: bran from wheat flour is done by sieving. (a) False (b) True
11. 11.⚖️ 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 amount poured (c) how clear the water is (d) the same muddy water
12. 12.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a magnet (d) cotton or cloth
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a battery cell
16. 16.⚖️ 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
17. 17.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
18. 18.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) small stones from dal (c) bran from wheat flour (d) husk from rice grain
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
22. 22.🫗 How do we separate husk from rice grain? (a) winnowing (b) filtering (c) evaporating (d) handpicking
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a balloon
24. 24.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) sieving (d) handpicking
25. 25.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) yeast (d) cotton or cloth
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) a funnel (d) muddy water
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) yeast (d) cotton or cloth
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) turmeric powder (d) a funnel
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Which of these is done by filtering? (a) husk from rice grain (b) small stones from dal (c) mud from water (d) salt from sea water
31. 31.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
32. 32.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
33. 33.⚖️ 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 muddy water
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a balloon (d) yeast
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
39. 39.⚖️ 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
40. 40.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True

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