Science 6 - Separating Mixtures

What method is used to obtain salt from seawater?

• decantation

• sedimentation

• evaporation

• filtering

Tags

NGSS.MS-PS1-4

Which of the following examples undergoes the evaporation process?

• a pail of water under the heat of the sun

• ironing clothes every weekend

• brushing your teeth after a meal

• listening to the radio

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4

What is the main factor that causes the evaporation process in separating mixtures?

• water

• heat

• smoke

• light

Tags

NGSS.MS-PS1-4

Elsa accidentally spilled a glass of water in the salt container and is thinking of a solution to recover the salt. What should she do to return the salt to its original state?

• wrap it with newspaper tightly

• throw it away in the waste can

• hide it in a dark corner

• boil the solution

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

While boiling water in a kettle, Ariane noticed smoke coming from the spout. He asked his mother, “Why does the smoke rise upwards?” What will his mother’s answer be?

• because the water reached its cooling point

• because the water reached its boiling point

• because the water is heated and became water vapor

• because the water is freezing

Tags

NGSS.MS-PS1-4

What method is used to separate solid impurities from water using a filter in faucets?

• sieving

• magnetism

• filtering

• distillation

Which material will you use to make coffee out of ground coffee for your visitors?

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Paul wants to separate cornstarch from small stones for making maja blanca. What material should she use?

• filter cloth

• strainer with small holes

• filter paper

• towel

What technique will you use to separate impurities from mongo seeds mixed with salt?

• filtering

• picking

• sieving

• magnetism

• What method is used to obtain salt from seawater?
  

• • decantation

• • sedimentation

• • evaporation

• • filtering

Tags

NGSS.MS-PS1-4