Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 954 · 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 cotton or cloth for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a mirror
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
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 keep it the same (b) we change it (c) we measure it
6. 6.⚖️ 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 filter material (d) the amount poured
7. 7.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) filtering (c) sieving (d) handpicking
8. 8.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a magnet
10. 10.True or false: salt from sea water is done by evaporating. (a) True (b) False
11. 11.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
12. 12.⚖️ 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 filter material (c) how clear the water is (d) the amount poured
13. 13.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
14. 14.🫗 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
15. 15.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) sieving (d) filtering
16. 16.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
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) it turns to sugar (d) yes, all of it
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) turmeric powder (d) yeast
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
20. 20.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
21. 21.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) handpicking (d) winnowing
22. 22.🔍 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
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) muddy water (d) a battery cell
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a clean glass (d) a battery cell
25. 25.🫗 Which of these is done by evaporating? (a) small stones from dal (b) gravel from fine sand (c) bad grains from rice (d) sugar from sugar water
26. 26.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
28. 28.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) gravel from fine sand (d) sugar from sugar water
29. 29.⚖️ 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
30. 30.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
31. 31.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) handpicking (d) winnowing
32. 32.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
33. 33.🫗 Which of these is done by handpicking? (a) salt from sea water (b) tea leaves from tea (c) bad grains from rice (d) chaff from wheat grain
34. 34.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) a funnel (d) muddy water
36. 36.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
39. 39.True or false: gravel from fine sand is done by sieving. (a) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a balloon

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