Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 664 · 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 funnel for the muddy water filter? (a) needed (b) not needed
2. 2.⚖️ 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
3. 3.🛟 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
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) yeast (d) sand and pebbles
5. 5.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
6. 6.🧺 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
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a magnet (d) cotton or cloth
8. 8.⚖️ 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) True (b) False
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a clean glass (d) muddy water
11. 11.⚖️ 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 keep it the same (c) we measure it
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the same muddy water (d) the same funnel
14. 14.⚖️ 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) False (b) True
15. 15.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) a battery cell (d) cotton or cloth
16. 16.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) muddy water (d) turmeric powder
18. 18.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: mud from water is done by filtering. (a) False (b) True
20. 20.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
21. 21.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a balloon (d) a clean glass
22. 22.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) handpicking (d) evaporating
23. 23.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the amount poured (d) how clear the water is
25. 25.🫗 Which of these is done by handpicking? (a) small stones from dal (b) salt from sea water (c) husk from rice grain (d) tea leaves from tea
26. 26.⚖️ 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) True (b) False
27. 27.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) chaff from wheat grain (c) small stones from dal (d) sugar from sugar water
28. 28.True or false: yeast is needed for the muddy water filter. (a) True (b) False
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a mirror (d) a funnel
32. 32.True or false: bran from wheat flour is done by sieving. (a) False (b) True
33. 33.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
34. 34.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a balloon
37. 37.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) sieving (d) winnowing
38. 38.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) sieving (d) handpicking
39. 39.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
40. 40.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed

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