UV Light Objectives Today you will learn about

UV Light

Objectives: Today, you will learn about: 1. What is UV Light? 2. Protection from UV 3. Ozone 4. Electromagnetic Spectrum 5. UV Bracelets 6. Test the Bracelets 7. Cool UV Inventions

Benefits of UV UV light is invisible to the human eye but some insects, like bumblebees, can see them! Bees use the reflection of UV off of flower petals to guide their pollen collecting

Benefits of UV UV light is _____to the human eye but some insects, like ________, can see them! Bees use the reflection of UV off of _________ to guide their _____collecting

Benefits of UV • UV light is also slows down Psoriasis • Disinfecting materials (ex: fish tanks) and sterilizing medical equipment • Some homes use UV Light Filters to sterilize their drinking water

Benefits of UV • UV light is also slows down _______ • Disinfecting materials (ex: fish tanks) and _________ medical equipment • Some homes use UV Light Filters to ________their drinking water

Benefits of UV • UV Light produces Vitamin D in the skin. Too much sun will cause first degree burns. • Making Vitamin D will prevent Rickets Disease, which is bone weakening d/t lack of calcification • Vitamin D prevents the production of some Internal Cancers

Benefits of UV • UV Light produces ______in the skin. Too much sun will cause first degree burns. • Making Vitamin D will prevent _______ Disease, which is bone weakening d/t lack of calcification • Vitamin D prevents the production of some ___________

Types of UV Rays UV Light is invisible rays from the sun – UVA Rays causes wrinkling and cancer – UVB Rays causes sunburn and cancer – UVC Rays are the most dangerous, rays that are blocked by the ozone

Types of UV Rays UV Light is invisible rays from the sun – UVA Rays – UVB Rays – UVC Rays

The ozone is a protective atmospheric layer that protects us from UV Light. Holes in the ozone are created by CFC’s, Refrigerants and aerosol sprays

The ______is a protective _________layer that protects us from UV Light. Holes in the ozone are created by ____________________

Skin Types – Type One: Always burns, but never tans – Type Two: Burns easily, tans very little – Type Three: Burns sometimes, but can tan gradually to a light brown (Caucasian skin) – Type Four: Hardly ever burns, always tans well (Asian-Olive skin) – Type Five: Rarely ever burns, tans very well (Hispanic-Brown skin) – Type Six: Never burns, deeply pigmented (African. Black skin)

Skin Types – Type _____: Always burns, but never tans – Type ______: Burns easily, tans very little – Type ______: Burns sometimes, but can tan gradually to a light brown (Caucasian skin) – Type ______: Hardly ever burns, always tans well (Asian-Olive skin) – Type ______: Rarely ever burns, tans very well (Hispanic-Brown skin) – Type ______: Never burns, deeply pigmented (African-Black skin)

How to Protect Yourself • UV Sunglasses • Sunscreen 20 minutes prior to going out • Stay out of sun from 10 am to 2 pm • Cover yourself: remember UV light penetrates through white T Shirt • Use Cold Water/Aloe for sunburn • Mud • Shelter, Cave

How to Protect Yourself

UV Light Trivia: What Increases your Risk for Skin Cancer? • Geographic location being closer to the equator • Altitude higher elevations • Time of day when the sun is highest in the sky • Heredity pale skin • Medications antibiotics

UV Light Trivia: What Increases your Risk for Skin Cancer? • Geographic location • Altitude • Time of day • Heredity • Medications

UV Light Inventions 1. UV Light Hairbrush – Prevents Dandruff 2. UV Light Toothbrush – Helps Whiten Teeth 3. UV Light Vacuum – Kills Mites 4. UV Travel Pen – Germ Guardian

UV Light Inventions 1. UV Light Hairbrush 2. UV Light Toothbrush 3. UV Light Vacuum 4. UV Travel Pen

Activity • Make a UV detecting Bracelet using: – Leather/Suede/String – UV Detecting Beads • When everyone shows Miss Skrabak/Mr Snyder their Bracelet, the entire class will go outside to test their bracelet in the sun – Test 1 Test your bracelet in late afternoon sun – Test 2 Test your bracelet on a cloudy day – Test 3 Test your bracelet by putting it under a pair of sunglasses – Test 4 Test the effectiveness of different Sunscreens

UV Light Journal Entry 1. How do you protect yourself from the sun in a survival situation? 2. Which atmospheric layer prevents sunlight from reaching the earth? 3. Name one benefit of UV light? 4. What are three types of UV Rays and how are they different? 5. Look at the UV Inventions from the other slide. If you could invent a unique UV invention, what would it be?

Sunburn Protection Sheet Sunburn Symptoms: Mild: 1. Redness/Warmth 2. Pain 3. Itchiness Severe: 1. Blistering 2. Swelling 3. HA 4. Nausea 5. Fever 6. Chills 7. Dizziness What to do with Extreme Sunburn: 1. Cold Compress 2. Cool Bath 3. Extra Fluids 4. Stay away from the sun 5. Seek medical attention if symptoms do not go away

Sunburn Symptoms: Mild: 1. 2. 3. Severe: 1. 2. 3. 4. 5. 6. 7. Sunburn Protection Sheet What to do with Extreme Sunburn: 1. 2. 3. 4. 5.

Mushroom Coral Sunscreen Video Clip 2. 04 • http: //dsc. discovery. com/videos/man-vswild-gloopy-mucus. html