Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 460 · 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.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
2. 2.⚖️ 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
3. 3.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
4. 4.True or false: bran from wheat flour is done by sieving. (a) True (b) False
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) how clear the water is (d) the amount poured
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a battery cell
7. 7.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
8. 8.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) gravel from fine sand (c) small stones from dal (d) husk from rice grain
9. 9.🫗 Which of these is done by handpicking? (a) small stones from dal (b) gravel from fine sand (c) husk from rice grain (d) sugar from sugar water
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
11. 11.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a mirror (d) muddy water
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) a funnel (d) sand and pebbles
14. 14.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
15. 15.True or false: gravel from fine sand is done by filtering. (a) False (b) True
16. 16.⚖️ 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 filter material (c) the same glass (d) the same muddy water
17. 17.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
18. 18.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
19. 19.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
20. 20.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) evaporating (d) filtering
21. 21.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a magnet (c) muddy water (d) a funnel
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
24. 24.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) evaporating (d) filtering
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a magnet (d) a clean glass
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
29. 29.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
30. 30.🧺 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) a balloon
31. 31.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) mud from water (c) gravel from fine sand (d) bad grains from rice
32. 32.🫗 Which of these is done by filtering? (a) husk from rice grain (b) bran from wheat flour (c) mud from water (d) small stones from dal
33. 33.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
34. 34.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a magnet (d) a balloon
35. 35.True or false: mud from water is done by filtering. (a) False (b) True
36. 36.🫗 How do we separate salt from sea water? (a) handpicking (b) filtering (c) sieving (d) evaporating
37. 37.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) a clean glass (d) cotton or cloth
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) muddy water (c) a funnel (d) cotton or cloth
40. 40.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a battery cell (d) turmeric powder

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