Grade 7 Ch. 11 Lessons 1 and 2

What is the top of the tooth covered with?

• Soft tissue

• Hard, white enamel

• Pink flesh

• Melanin

_______ is a chemical found in toothpaste and some tap water that can help prevent tooth decay.

• Flouride

• Enamel

• Plaque

• Tartar

_______ is a thin, sticky film that builds up on teeth and leads to tooth decay.

• Flouride

• Enamel

• Plaque

• Tartar

What should you do to take good care of your teeth and gums?

• Eat healthy fruits and vegetables

• Limit sugary foods and soft drinks

• Drink water

• Floss and brush twice a day

• All of the above

Which layer of the skin contains blood vessels, nerve endings, and hair follicles?

• Epidermis

• Dermis

• Pore

• Hair Follicles

Which layer of the skin makes new skin cells?

• Epidermis

• Dermis

• Pore

• Hair Follicles

What should you wear to protect yourself from UV rays?

• Light clothing.

• Sunglasses and sunscreen.

• Heavy winter coats.

• No protection is needed.

Which are tiny openings in the skin that allow perspiration (sweat) to escape?

• Epidermis

• Dermis

• Pore

• Hair Follicles

Which are small sacs in the dermis from which hair grows?

• Epidermis

• Dermis

• Pore

• Hair Follicles

What should you do to protect your skin from the sun's rays?

• Use sunscreen.

• Use tanning beds.

• Avoid wearing hats.

• Stay indoors all the time.