Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 847 · 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) sand and pebbles (b) a battery cell (c) a balloon (d) a mirror
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a magnet (d) a clean glass
3. 3.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a balloon (d) muddy water
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
5. 5.True or false: bad grains from rice is done by handpicking. (a) True (b) False
6. 6.True or false: salt from sea water is done by filtering. (a) False (b) True
7. 7.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
9. 9.⚖️ 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) False (b) True
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
11. 11.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) handpicking (d) filtering
12. 12.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
13. 13.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) sugar from sugar water (d) bran from wheat flour
14. 14.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a clean glass (d) a balloon
19. 19.🫗 How do we separate small stones from dal? (a) sieving (b) evaporating (c) winnowing (d) handpicking
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the same muddy water (c) the filter material (d) the amount poured
21. 21.⚖️ 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
22. 22.🧺 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) a balloon
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
26. 26.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) bad grains from rice (c) tea leaves from tea (d) chaff from wheat grain
27. 27.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a battery cell (d) a funnel
29. 29.⚖️ 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
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
31. 31.⚖️ 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 keep it the same (b) we change it (c) we measure it
32. 32.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) cotton or cloth (d) sand and pebbles
35. 35.⚖️ 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
36. 36.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
38. 38.⚖️ 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
39. 39.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
40. 40.⚖️ 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

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