Mixtures Review

Which of the following will NOT dissolve in water?

• Salt

• Sand

• Sugar

• Baking Soda

A ______ would be a good tool to use to separate iron filings and sand.

• Magnet

• Sieve

• Forceps

• Water

Kathy used sugar cubes in her coffee. What combination would make the sugar cubes dissolve the fastest?

• Cold Coffee and Stirring

• Hot Coffee and No Stirring

• Hot Coffee and Stirring

• Cold Coffee and no Stirring

Tags

NGSS.MS-PS1-4

What substance would dissolve in water?

• Sand

• Iron

• Oil

• Salt

What would dissolve first, crushed sugar or a sugar cube?

• Sugar Cube because it has less surface area.

• Crushed sugar because it has more surface area.

• They will dissolve at the same rate

• Crushed sugar because the pieces are smaller

Mixtures are a combination of two or more substances.

• True

• False

Iron is attracted to magnets

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What factor does NOT speed up the dissolving process?

• Stirring

• Warm Water

• Color of the Water

• More surface area

Brian has a mixture of rocks, salt, sand and shampoo. What item could BEST be separated using a sieve?

• Salt

• Sand

• Shampoo

• Rocks

Sara has a mixture of rocks, salt, sand and water. What would be needed to separate out the salt?

• Filter

• Sieve

• Forceps

• Evaporation