Physical vs. Chemical changes

When matter changes size or shape, this is a 

• Chemical Change
• Physical Change

When two materials react and form a new kind of matter this change is a 

• Chemical Change
• Physical Change

All atoms are of the same kind in a 

• Element 
• Compound
• Mixture

Substance in which one or more elements are combined physically 

• Metal 
• Alloy 
• Mixture

Form of matter in which substances are chemically combined 

• Protein
• Compound
• Molecule

Which term does not fit with the others listed? 

• Solid 
• Reactant
• Gas 
• Liquid

A gas is a form of matter that

• has a definite volume.
  
• is generally a liquid or solid at room temperaflre. 
• takes the shape and volume of its container.
  
• is difficult to compress. 

Physical properties of a substance include 

• color and odor.
  
• melting and boiling points. 
• malleability.
  
• all of the above. 

Always true, sometimes true or never true: A compound can be physically separated into its elements. 

• Always True
• Sometimes True
• Never True

During chemical and physical changes, substances absorb or give off

• Products
• Compounds
• Energy
• Water