pure substances and mixtures

What are two the two types of pure substances?

• elements

• compounds

• heterogenous mixtures

• homogenous mixtures

What is this?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Which of these is a mixture?

• Laundry Detergent

• Salt (NaCl)

• Oxygen (O)

• Fluorine (Fl)

Air is:

• An element

• A compound

• A mixture

• None of these

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

• heterogeneous

• homogeneous

• pure

What are two the two types of mixtures?

• elements

• compounds

• heterogenous

• homogenous

Which mixture can easily be separated by Hand/Tweezers

• 
• 
• 
• 

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

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

Separating mixtures based on boiling points.

• Desalination
• Distillation
• Decantation
• Condensation

Which substances, when mixed together, maintain their original physical properties?

• gravel and water

• wood chips, water and sand

• sand and water

• all of the above

Tags

NGSS.MS-PS1-2