compounds and mixture

Matter is made up of __________, a Greek word that means “uncutable.”

• atoms
• protons
• electrons
• neutrons

All matter is made of atoms and _________________. 

• molecules
• energy
• hydrogen
• oxygen

The number of ___________ in the nucleus are what makes one atom different from another.

• electrons
• protons
• neutrons
• molecules

Which of the following is NOT an example of an element? 

• cobalt (Co)
• helium (He)
• carbon monoxice (Co3)
• Copper (Cu)

Which of the following substances is NOT an example of a mixture?

• coffee
• water
• sand
• kool aide

 _____________ are the simplest pure substances.

• atom
• element
• molecule
• electron

neon gas is a(n)

• element
• mixture
• compound

pure water is a(n)

• element
• mixture
• compound

copper is a(n)

• element
• mixture
• compound

 lemonade is a(n)

• element
• mixture
• compound