ERMS- 8th Science ch. 4

What are compounds?

• made of all the same element
• a mixture of many elements
• a pure substance made of more than one element
• substances that can be easily separated into different elements

Can an element be broken down into a simpler substance 

• yes 
• No
• sometimes, if conditions are right

What is made up two or more elements that are chemically combined?

• Element
• Mixture
• Compound
• Solids

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical
• collaborate

A pure substance that cannot be broken down into other substances by chemical or physical means. 

• compound          
• atom
• mixture 
• element

Mixtures are separated through ___________changes.

• mixture
• compound
• physical

This picture represents which of the following?

• element
• compound
• mixture

This picture represents which of the following?

• element
• compound
• mixture

This picture represents which of the following?

• element
• compound
• mixture

Elements can be broken down into simpler substances. 

• false 
• true 
• sometimes