Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 865 · 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: turmeric powder is not needed for the muddy water filter. (a) True (b) False
2. 2.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) filtering (d) evaporating
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
4. 4.True or false: husk from rice grain is done by filtering. (a) True (b) False
5. 5.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a magnet (d) muddy water
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a clean glass (d) a balloon
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
10. 10.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) yeast (c) muddy water (d) sand and pebbles
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) muddy water (d) a funnel
13. 13.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
14. 14.🔮 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) no, salt passes through (d) yes, all of it
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
16. 16.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
18. 18.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
19. 19.🫗 Which of these is done by filtering? (a) bad grains from rice (b) sugar from sugar water (c) bran from wheat flour (d) tea leaves from tea
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) turmeric powder
21. 21.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
22. 22.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
23. 23.True or false: mud from water is done by handpicking. (a) False (b) True
24. 24.⚖️ 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
25. 25.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
26. 26.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) muddy water (d) turmeric powder
29. 29.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
30. 30.⚖️ 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 change it (b) we measure it (c) we keep it the same
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a battery cell (d) a funnel
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) cotton or cloth
33. 33.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) sieving (d) winnowing
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a balloon (d) a clean glass
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) sand and pebbles (d) a funnel
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a funnel (d) a balloon
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the amount poured (c) the same funnel (d) the same glass
40. 40.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) gravel from fine sand (c) salt from sea water (d) bad grains from rice

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