IMPORTANCE OF ELEMENTS

OXYGEN

• also known as the most abundant element
• it can protect you from the sun's ultraviolet rays
• is given off by trees
• without it, humans wouldn't survive
• also known as the air we breathe

CALCIUM

• can be found in many foods
• used by blood vessels to move blood
• also good for the body by means of strong bones and teeth
• helps control things like muscle growth and the electrical impulses
• A material used in making glass, plaster and cement