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Lesson Worksheet: Using Water Science

In this worksheet, we will practice identifying ways that humans use water and describing an experiment comparing filters that can be used to clean water.


Fill in the blanks: Filtration separates a mixture of and .

  • Asolids, liquids
  • Bsolids, solids
  • Cliquids, liquids
  • Dliquids, gases


Sophia had some sand and water.

She filtered it through two different filters. Here are her results.

Type of FilterGravel filterCoffee filter
Was There Sand in the Water?YesNo

Which filter worked best?

  • ABoth worked the same.
  • BThe gravel filter
  • CThe coffee filter
  • DNeither worked.


Which of the following is a natural source of water?

  • A
  • B
  • C
  • D


Which of the following shows filtration?

  • A
    Close up of woman hands blending fruit shake in blender at home.
  • B
    Chef with mixer in hands.
  • C
    Scientist filtering soil samples at table.
  • D
    Effervescent tablet dissolving in a glass of water.


Which of the following is a man-made source of water?

  • A
  • B
  • C
  • D


Elizabeth is filtering a bowl of dirty water. Pick the correct order of the steps she needs to take.

  • A
  • B
  • C
  • D


Look at the pictures.

Which ones show humans using water?

  • A3 and 4
  • B2 and 4
  • C1 and 3
  • D1 and 2


Which pictures show natural sources of water?

  • A2 and 4
  • B1, 3, and 4
  • C1, 2, and 3
  • D3 and 4


Select the places that use water.

  • A
  • B
  • C
  • DAll of the answers are correct.

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