In this lesson, you will review what you already know about the impact sun exposure has on human skin and what people typically do to protect themselves, if anything. Using a number of online resources, you will then learn how to care for your skin, the damaging effects of sunburns and tanning, and how sunscreens provide protection from the sun's harmful UV rays.
Directions: Circle the letter and word of the correct answer.
1. The amount you tan or burn while in the sun depends on the amount of _______ in your skin.
A. melanin B. blood vessels C. fat D. hair follicles
2. _______ in your skin helps you feel sensations.
A. Sweat glands B. Nerve endings C. Fat D. Connective tissue
3. Sunburns and skin cancer are attributed to _______ radiation exposure.
A. UVA B. UVB C. UVC D. UVA and UVC
4. A condition that is not caused by exposure to UV radiation is _______.
A. wrinkles B. leathery skin C. acne D. brown age spots
5. Doctors recommend using sunscreen with an SPF of at least _______ on a daily basis.
A. 15 B. 30 C. 45 D. 60
6. The sun’s rays are strongest between 10:00 AM and _______.
A. 1:00 PM B. 2:00 PM C. 4:00 PM D. 5:00 PM
7. When exposed to sunlight, the ______ thickens to block out UV rays.
A. epidermis B. sweat gland C. dermis D. subcutaneous tissue
8. The amount of sunburn a person gets depends on his or her ______ and ability to produce melanin.
A. weight B. height C. vision D. pigmentation
9. People with severe sunburn can experience each of the following symptoms except _______.
A. tendonitis B. fever C. chills D. weakness
10. _______ is effective in filtering out the sun’s harmful rays.
A. Snow B. Cloud cover C. Clothing D. Water
11. Thick ointments with zinc oxide that help block sunlight from the skin are called ______.
A. sunscreens B. sunblocks C. moisturizers D. chemical peels
12. After sunburned skin peels, the new thin and sensitive skin that appears must be protected from the sun for several _______.
A. hours B. days C. weeks D. months