Pure and Mixed Substances

WORKSHEET FOR PURE AND MIX SUBSTANCES

Which of the following methods can be used to separate salt from a mixture of salt and water? A. | | Filtration | B. | | Decantation | C. | | Evaporation | D. | | Sedimentation |

Use the following information to answer the next question. The soil present in the backyard of Catherine’s house is very rocky and contains a lot of small rocks. Catherine wants to use this soil to pot some plants. However, she first wants to separate the rocky parts of the soil. |
Which method of separation should Catherine use to separate the constituents of the soil? A. | | Sieving | B. | | Filtration | C. | | Winnowing | D. | | Evaporation |

Which is the most effective method of separating soil from water? A. | | Sieving | B. | | Filtration | C. | | Evaporation | D. | | Sedimentation |

Which of the following mixtures can be separated using the hand-separation method? A. | | Salt-soil mixture | B. | | Pencil-pen mixture | C. | | Sugar-water mixture | D. | | Husk-wheat mixture |

Use the following information to answer the next question. Before machines were invented to separate husk from wheat, farmers used traditional methods to do the same. One such method used the energy of the blowing wind. |
The described process for the separation of husk from wheat is known as A. | | sedimentation | B. | | winnowing | C. | | decantation | D. | | distillation |

Which of the following mixtures can be separated by filtration? A. | | Alcohol-water mixture | B. | | Sugar-water mixture | C. | | Sand-water mixture | D. | | Salt-water mixture |

Which of the following mixtures can be separated by filtration? A. | | Alcohol-water mixture | B. | | Sugar-water mixture | C. | | Sand-water mixture | D. | | Salt-water mixture |

Use the following information to answer the next question. Johnny reads in a book that a mixture of salt and soil can be