Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 935 · 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 sieving? (a) sugar from sugar water (b) husk from rice grain (c) salt from sea water (d) bran from wheat flour
2. 2.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) both stay behind (d) tea stays behind
4. 4.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bad grains from rice (c) salt from sea water (d) tea leaves from tea
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
7. 7.True or false: husk from rice grain is done by filtering. (a) False (b) True
8. 8.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
9. 9.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
11. 11.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) sugar from sugar water (d) tea leaves from tea
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) cotton or cloth (d) a funnel
14. 14.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
16. 16.🫗 Which of these is done by winnowing? (a) salt from sea water (b) sugar from sugar water (c) bran from wheat flour (d) chaff from wheat grain
17. 17.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) sand and pebbles (d) a balloon
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
19. 19.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) filtering (d) handpicking
20. 20.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) cotton or cloth (d) muddy water
22. 22.⚖️ 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 same glass (c) the filter material (d) the same funnel
23. 23.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a clean glass (d) a mirror
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) a clean glass (d) muddy water
25. 25.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) small stones from dal (c) chaff from wheat grain (d) sugar from sugar water
26. 26.True or false: mud from water is done by handpicking. (a) False (b) True
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) a magnet (d) a battery cell
28. 28.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) handpicking (d) evaporating
29. 29.🛟 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
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) the filter material (d) how clear the water is
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
33. 33.True or false: husk from rice grain is done by handpicking. (a) True (b) False
34. 34.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True

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