Separation of mixtures

1.What is a mixture?

• A substance made of only one type of particle.

• A combination of two or more substances that are not chemically combined.

• A pure substance with a fixed composition

2. Which of the following is an example of a mixture?

• pure water

• salt

• salad

3.How can we separate a mixture of sand and water?

• boiling

• filtration

• dissolving

Tags

NGSS.5-PS1-4

4.How can we separate a mixture of iron fillings and sand?

• magnetism

• evaporation

• boiling

Tags

NGSS.MS-PS2-3

5.Which of the following is attracted to a magnet?

• plastic

• glass

• iron

Tags

NGSS.MS-PS2-3

6.What method is used to separate black grains in the rice?

• filtration

• sorting

• boiling

7.Which of the following is a property used in separating mixtures using magnetism?

• colour

• density

• attraction to a magnet

Tags

NGSS.MS-PS2-5

8.What tool is used to separate larger particles from smaller particles in a mixture?

• magnet

• funnel

• sieve

9.What happens when a mixture of sand and water is left to stand a while?

• sand dissolves in water

• sand settles at the bottom

• sand floats on the surface

Tags

NGSS.MS-PS1-2

10.Which method is used to separate a solid that has not dissolved in a liquid?

• evaporation

• filtration

• sorting