Screen

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/screen

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the dominant early technology?Cathode Ray Tube (CRT)
2. What is the key flat-panel technologies?Liquid Crystal Display (LCD) and Organic Light Emitting Diode (OLED)
3. How do old CRT screens work?CRT screens use a beam of electrons that hits a phosphorescent surface, making it glow to create images.
4. Why are LCD and OLED screens thinner than old CRTs?They use solid‑state electronics and tiny pixels, so they can be made flat and energy‑efficient.

Cathode Ray Tube (CRT): An older display technology using electron beams to illuminate a screen.
Pixel Density (PPI): The number of pixels packed into a given area of a display.
Contrast Ratio: The difference between the brightest and darkest parts of an image.
Augmented Reality (AR): Technology that overlays digital information onto the real world.