Separating Mixtures Experiment Worksheet

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

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