EOY 2

The formation of rust on iron is a chemical change BECAUSE 

•    The substance remains the same.
•    The color and shape have changed.
•    The mass and volume have changed.
•    A new substance has been formed.

Which of the following choices contains only physical properties?  

• Ability to rust, mass, color
• Ability to break, ability to bend, texture
•  Ability to melt, ability to tarnish, shape
• Ability to be shaped, ability to burn, volume

Which process changes matter into one or more new substances?  (7-5.10)

• Chemical Change 
• Physical Change 
• Freezing 
• Melting

An example of a large molecule which the digestive system must break down is....

• water
• oxygen
• carbon dioxide
• lipid

Which body system is responsible for rapidly communicating information inside the body using electrical impulses?

• Endocrine system
• Integumentary system
• Nervous system
• Skeletal system

Which body system is responsible for the movement of the body, as well as the movement of internal organs?

• Skeletal system
• Muscular system
• Digestive system
• Integumentary system

Animals are able to move by using the energy from the food they eat. This conversion is from what type of energy to what other type of energy?

• Radiant to chemical
• Thermal to electrical
• Chemical to mechanical
• Sound to chemical

The table above summarizes some of the structures and functions of the human body.  What term should replace X in the table? 

• muscles
• bones
• skin
• arteries

Energy obtained by an organism when it consumes food is ...

• absorbed into the bloodstream.
• transformed into other forms of energy
• completely used during digestion
• passed through the body as waste

Which of the following represents a physical change during digestion?

• Teeth crush and grind food into smaller fragments
• Saliva breaks starches down into sugars in the mouth
• Enzymes break down food in the small intestine
• Stomach acids break down food particles into smaller particles