Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 769 · 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 done by evaporating? (a) bran from wheat flour (b) bad grains from rice (c) gravel from fine sand (d) sugar from sugar water
2. 2.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the filter material (d) how clear the water is
4. 4.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) evaporating
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
6. 6.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🧺 Do we need a balloon 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? Which of these is kept the same? (a) the same glass (b) the filter material (c) how clear the water is
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a mirror
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the amount poured
12. 12.⚖️ 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
13. 13.🔮 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
14. 14.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) salt from sea water (d) bad grains from rice
15. 15.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
16. 16.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) muddy water (c) yeast (d) a mirror
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a balloon
20. 20.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) handpicking (d) winnowing
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a battery cell (d) cotton or cloth
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) muddy water (d) a clean glass
25. 25.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same muddy water (c) the filter material
28. 28.⚖️ 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
29. 29.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) gravel from fine sand (d) husk from rice grain
32. 32.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
33. 33.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a mirror (d) a clean glass
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a funnel (d) a balloon
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.True or false: muddy water is needed for the muddy water filter. (a) False (b) True

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