Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 637 · 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.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
2. 2.⚖️ 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 same muddy water (c) the same glass (d) the amount poured
3. 3.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bad grains from rice (c) salt from sea water (d) mud from water
4. 4.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
5. 5.⚖️ 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
6. 6.True or false: bran from wheat flour is done by sieving. (a) False (b) True
7. 7.🛟 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
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) a clean glass (d) a funnel
9. 9.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a balloon (d) a clean glass
12. 12.🫗 Which of these is done by sieving? (a) mud from water (b) small stones from dal (c) bad grains from rice (d) bran from wheat flour
13. 13.True or false: mud from water is done by sieving. (a) False (b) True
14. 14.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
16. 16.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) handpicking (d) sieving
17. 17.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
18. 18.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
21. 21.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) a balloon (d) a magnet
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a magnet (d) sand and pebbles
24. 24.🫗 Which of these is done by filtering? (a) small stones from dal (b) bran from wheat flour (c) gravel from fine sand (d) tea leaves from tea
25. 25.🫗 Which of these is done by evaporating? (a) mud from water (b) bran from wheat flour (c) gravel from fine sand (d) sugar from sugar water
26. 26.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) yeast
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a funnel (d) sand and pebbles
29. 29.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
30. 30.🛟 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
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a magnet
32. 32.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
33. 33.⚖️ 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 change it (c) we measure it
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
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) False (b) True
36. 36.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
37. 37.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
38. 38.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
39. 39.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed

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