Being a Wise Consumer

Bacteria in your mouth creates a sticky substance called ____________.

• Gingivitis
• Orthodontia
• Plaque
• Cavities

The straightening of crooked teeth is called ___________.

• Gingivitis
• Orthodontia
• Plaque
• Cavities

A ________ person can see things that are far away, but things that are nearby look blurry. 

• Farsighted
• Nearsighted
• Astigmatism

For people with __________, the cornea or lens of the eye is curved unevenly.  

• Farsightedness
• Nearsightedness
• Astigmatism

Invisible rays given off by the sun are called ______________.

• Sonic rays 
• Sound waves 
• Tanning rays 
• Ultraviolet rays 

The ____________ release oil that coats your hair and your skin.

• Hair shafts
• Hair surfaces
• Hair follicles
• Oil glands

Hair grows from pitlike areas in your skin, called ___________.

• Hard nails
• Bones
• Hair follicles
• Retinas 

The term SPF means _______________.

• Sound protection factor
• Sun protection factor 
• Silent protection factor
• Saving protection factor

Which of the following is not part of the ear?

• Optic nerve
• Auditory nerve
• Cochlea
• Hammer

The coiled tube in your inner ear is known as the _____________.

• Stirrup
• Anvil
• Eustachian tube 
• Cochlea