Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 73 · 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? True or false: the same muddy water is what we measure. (a) True (b) False
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) a clean glass (d) cotton or cloth
4. 4.🫗 Which of these is done by filtering? (a) mud from water (b) chaff from wheat grain (c) sugar from sugar water (d) salt from sea water
5. 5.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the amount poured (c) the same glass (d) how clear the water is
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) a funnel (d) sand and pebbles
8. 8.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) winnowing (d) sieving
9. 9.🫗 How do we separate bran from wheat flour? (a) winnowing (b) handpicking (c) evaporating (d) sieving
10. 10.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
12. 12.🫗 How do we separate mud from water? (a) evaporating (b) winnowing (c) sieving (d) filtering
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a battery cell (d) muddy water
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) cotton or cloth (d) muddy water
17. 17.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
20. 20.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
21. 21.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
24. 24.True or false: yeast is needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a balloon (c) a mirror (d) a battery cell
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a clean glass (d) a funnel
29. 29.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, if it is cold (d) yes, always
30. 30.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Which of these is done by winnowing? (a) salt from sea water (b) husk from rice grain (c) gravel from fine sand (d) bran from wheat flour
32. 32.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) sieving (d) handpicking
33. 33.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
34. 34.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
36. 36.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) evaporating
37. 37.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) small stones from dal (c) sugar from sugar water (d) bad grains from rice
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a clean glass (d) a mirror
40. 40.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed

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