Question

Moritz is watching his little brother play in a mud puddle. Moritz notices that when his brother stirs it with a stick, after a few moments the dirt settles back to the bottom of the puddle. His brother is creating a . Anjali knows that whole milk has more fat than skim milk. However, the solid fat doesn’t seem to separate from the liquid milk even after it has been in the fridge for a few days. This is evidence that milk is a .

Answer 1

1.

Answer: Suspension

Explanation:

A heterogeneous mixture in which solute remains suspended in the solvent is known a suspension. The solute particles are distinguishable. The solute particles do not dissolve but settle at the bottom when left undisturbed for a while. Moritz little brother stirs the mud puddle with stick to make a suspension of dirt in water.

2.

Answer: Colloid

Explanation:

A colloid is a mixture in which the solute particles remain dispersed in the solvent. The solute particles are small in size and hence do not settle down on their own. They cannot be separated by ordinary methods of filtration or centrifugation. When Anjali found that the solid fat did not separate from the liquid milk even after leaving the mixture undisturbed for few days in the fridge, it is an evidence that milk is a colloid.

Answer 2

Moritz is watching his little brother play in a mud puddle. Moritz notices that when his brother stirs it with a stick, after a few moments the dirt settles back to the bottom of the puddle. His brother is creating a SUSPENSION . Anjali knows that whole milk has more fat than skim milk. However, the solid fat doesn’t seem to separate from the liquid milk even after it has been in the fridge for a few days. This is evidence that milk is a COLLOID .