Unlocking Sunscreen Science
The Science Behind Sunscreen: Protecting Your Skin
The sun, our life-giving star, also emits ultraviolet (UV) radiation that can harm our skin. Sunscreen acts as a shield, protecting us from these damaging rays. But how does it work?
UV Radiation: The Invisible Threat
UV radiation comes in three forms: UVA, UVB, and UVC. UVC is absorbed by the atmosphere and never reaches the earth. UVA rays penetrate deep into the skin, causing premature aging and wrinkles. UVB rays are responsible for sunburns and play a key role in the development of skin cancer.
Sunscreen: Your Skin's Guardian
Sunscreen contains special ingredients that either absorb or reflect UV radiation. There are two main types of sunscreen:
- Mineral Sunscreens: These contain minerals like zinc oxide and titanium dioxide. They work by creating a physical barrier on the skin that reflects UV rays.
- Chemical Sunscreens: These contain chemical filters that absorb UV radiation, converting it into heat that is then released from the skin.
Understanding SPF
- UV Radiation:
- Energy waves from the sun that can damage skin.
- SPF:
- Sun Protection Factor; measures protection against UVB rays.
- Broad Spectrum:
- Sunscreen that protects against both UVA and UVB rays.
- penetrate:
- To pass into or through something.
- premature:
- Happening earlier than expected or before the normal time.
- barrier:
- Something that blocks or protects against passage.
- generous:
- Larger or more plentiful than standard or minimal.
Educational example text · News Article
One passage, many ways to practice
Reading-skill questions, word work and writing prompts — all built from this text.
Main Idea
Identify the central idea and explain how important details develop it.
Context Clues
Use clues in the passage to work out what words mean. A separate printable Vocabulary worksheet is also available.
Summarize
Select, organize, and restate the most important information without adding opinion.
Structure
Analyze how sections and organizational choices build the text's ideas or effects.
Vocabulary
Practice words from the passage with a printable worksheet.
Writing Prompts
Use the passage as a springboard for short written responses, from personal reflection to evidence-based arguments.
Fix the Sentence
Practice editing sentences drawn from this passage with a printable worksheet.
Ready to use this passage in class?
Start free with the Mixed worksheet and 3 PDF downloads each week. Focused skill sets depend on plan.
Preview questions from this passageShowHide
- 1What are the three types of UV radiation, and which one doesn't reach the Earth's surface?
- 2Explain the difference between mineral and chemical sunscreens in terms of how they protect the skin.
Where this passage belongs
You Might Also Like
About this news article passage for Middle School
“Unlocking Sunscreen Science” is a news article reading passage about Sunscreen Science, written for Middle School. It takes about 3 minutes to read (390 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.