Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 194 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
5. 5.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
6. 6.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a magnet (d) a balloon
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same glass (d) the same muddy water
8. 8.⚖️ 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) False (b) True
9. 9.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
10. 10.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
11. 11.True or false: small stones from dal is done by winnowing. (a) True (b) False
12. 12.🛟 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
13. 13.🫗 How do we separate bran from wheat flour? (a) filtering (b) evaporating (c) handpicking (d) sieving
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
15. 15.⚖️ 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 amount poured (c) the same muddy water (d) the filter material
16. 16.🛟 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
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
18. 18.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) muddy water (d) a funnel
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
23. 23.🔍 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
24. 24.True or false: yeast is needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a mirror (d) a battery cell
26. 26.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) filtering (d) winnowing
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
29. 29.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a clean glass (d) turmeric powder
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
32. 32.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a balloon (d) cotton or cloth
34. 34.🔮 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
35. 35.⚖️ 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
36. 36.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) sieving (d) handpicking
37. 37.True or false: gravel from fine sand is done by sieving. (a) False (b) True
38. 38.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
39. 39.⚖️ 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
40. 40.True or false: small stones from dal is done by handpicking. (a) True (b) False

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