Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 615 · 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) yeast (c) turmeric powder (d) cotton or cloth
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a magnet (c) a balloon (d) a battery cell
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a funnel (d) a balloon
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) a clean glass (d) muddy water
6. 6.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) filtering (d) evaporating
7. 7.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) chaff from wheat grain (c) husk from rice grain (d) salt from sea water
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) a battery cell
9. 9.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) muddy water (d) cotton or cloth
12. 12.🛟 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
13. 13.🧺 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) yeast
14. 14.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) tea leaves from tea (c) chaff from wheat grain (d) mud from water
15. 15.🔍 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 turns to sand (d) it dissolves
16. 16.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a mirror (d) a clean glass
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) cotton or cloth (d) a clean glass
20. 20.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
22. 22.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
23. 23.🫗 Which of these is done by handpicking? (a) salt from sea water (b) bran from wheat flour (c) small stones from dal (d) chaff from wheat grain
24. 24.⚖️ 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
25. 25.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
26. 26.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
27. 27.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
28. 28.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
29. 29.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
30. 30.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) a clean glass
32. 32.True or false: salt from sea water is done by sieving. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) bran from wheat flour (c) salt from sea water (d) small stones from dal
36. 36.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) evaporating
37. 37.True or false: husk from rice grain is done by winnowing. (a) True (b) False
38. 38.🔮 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) no, salt passes through (d) it turns to sugar
39. 39.⚖️ 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
40. 40.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True

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