Properties of Matter

Which one of the following would you use to separate sand from iron filings?

• a bar magnet
• filter paper
• chromatography paper
• alum

Tags

NGSS.HS-PS2-5

This diagram represents...

• An element

• A molecule

• A compound

• A mixture of elements and compounds

Tags

NGSS.MS-PS1-1

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1

What is a mixture?

• elements chemically combined
• a combination of different things
• it is found on the Periodic Table 
• it is made of chemical

What type of mixture is this?

• heterogeneous 
• homogeneous

Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?

• A solution
• A colloid
• A suspension
• A compound

Which statement below does NOT describe a colloid?

• A colloid is a type of heterogeneous mixture

• A colloid is a type of solution.

• The particles in a colloid do not settle like they do in a suspension.

• The particles in a colloid do not dissolve – they are just too small to be seen.

How are suspensions and colloids different?

• Suspensions settle out and colloids do not settle.

• Colloids settle out and suspensions do not settle.

• Suspensions dissolve and colloids do not.

• Colloids dissolve and suspensions do not.

The scattering of light by colloids is called ____. 

• homogeneous
• suspension
• air pollution
• The Tyndall effect

Tags

NGSS.MS-PS4-2