Mixtures

A mixture can be created by –

• pouring some water into a glass.

• combining two or more materials.

• blowing air through a straw.

• melting a solid to form a liquid.

What tool can be used to easily separate a mixture of iron and

plastic paper clips?

• Beaker

• Strainer

• Balance

• Magnet

All of the following are mixtures EXCEPT –

• iron filings in sand.

• crushed rock and glass.

• glass marbles in a pile.

• peanuts and raisins together.

How can a student make a sample of sand part of a mixture?

• Place the sample in a closed container and shake it.

• Add gravel to the sand sample and stir them together.

• Pour the sample into a bowl and warm it in sunlight.

• Spread out the sample of sand on a paper towel.

How do we know that a salad is a mixture?

• The salad is made up of different types of food.

• Bits of the salad can be picked up with a fork.

• The salad’s mass can be measured with a balance.

• The items in the salad are mostly solid.