Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 160 · 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.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a clean glass (c) a funnel (d) muddy water
3. 3.🫗 Which of these is done by sieving? (a) salt from sea water (b) bran from wheat flour (c) chaff from wheat grain (d) mud from water
4. 4.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
6. 6.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) muddy water (d) turmeric powder
8. 8.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) sugar from sugar water (c) small stones from dal (d) mud from water
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a balloon (d) a battery cell
11. 11.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
12. 12.⚖️ 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) True (b) False
13. 13.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
14. 14.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) gravel from fine sand (c) small stones from dal (d) bad grains from rice
15. 15.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
16. 16.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
17. 17.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
18. 18.⚖️ 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
19. 19.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) muddy water (d) a funnel
21. 21.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
22. 22.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
23. 23.True or false: mud from water is done by handpicking. (a) True (b) False
24. 24.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) bran from wheat flour (c) tea leaves from tea (d) sugar from sugar water
25. 25.🫗 How do we separate sugar from sugar water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
26. 26.🫗 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
27. 27.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
28. 28.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) winnowing (d) filtering
29. 29.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a clean glass (c) a funnel (d) sand and pebbles
31. 31.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) mud from water (c) sugar from sugar water (d) tea leaves from tea
32. 32.True or false: mud from water is done by filtering. (a) True (b) False
33. 33.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
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 glass (b) the amount poured (c) the filter material (d) the same funnel
35. 35.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a magnet
38. 38.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) cotton or cloth (d) yeast
40. 40.True or false: salt from sea water is done by sieving. (a) True (b) False

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