Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 814 · 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.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
2. 2.🫗 Which of these is done by filtering? (a) husk from rice grain (b) bran from wheat flour (c) tea leaves from tea (d) gravel from fine sand
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) cotton or cloth (d) a clean glass
4. 4.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
5. 5.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
6. 6.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
7. 7.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) chaff from wheat grain (d) mud from water
8. 8.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
10. 10.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
12. 12.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a balloon (d) sand and pebbles
14. 14.⚖️ 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 funnel (b) the amount poured (c) the filter material (d) the same muddy water
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
17. 17.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) yeast (d) a magnet
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
20. 20.True or false: sugar from sugar water is done by sieving. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) yeast
22. 22.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.⚖️ 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
25. 25.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) salt from sea water (c) chaff from wheat grain (d) mud from water
26. 26.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
27. 27.⚖️ 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) True (b) False
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
29. 29.⚖️ 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
30. 30.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a magnet (d) a mirror
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) cotton or cloth (d) sand and pebbles
35. 35.True or false: a mirror 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) sand and pebbles (b) a mirror (c) a clean glass (d) cotton or cloth
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
38. 38.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
39. 39.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
40. 40.⚖️ 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) True (b) False

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