Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 157 · 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 yeast for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
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? True or false: the same muddy water is what we measure. (a) False (b) True
6. 6.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
8. 8.⚖️ 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 filter material (c) the same muddy water (d) the amount poured
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a clean glass (d) yeast
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
13. 13.🧺 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 balloon (d) a funnel
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
15. 15.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
17. 17.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
19. 19.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bad grains from rice (c) gravel from fine sand (d) chaff from wheat grain
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) yeast (d) a funnel
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
22. 22.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) sieving (d) winnowing
23. 23.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bran from wheat flour (c) bad grains from rice (d) gravel from fine sand
24. 24.🧺 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
25. 25.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
26. 26.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
27. 27.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
28. 28.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
29. 29.True or false: husk from rice grain is done by winnowing. (a) True (b) False
30. 30.⚖️ 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
31. 31.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
32. 32.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a battery cell
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
35. 35.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a mirror
37. 37.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
38. 38.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the amount poured (c) how clear the water is
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) a clean glass (d) muddy water

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids