OpenOlympiad
Concept 3 of 9Foundation
Video

Transparent, translucent, opaque

  • Transparent — all light passes through. You see through clearly. (clear glass, water, air)
  • Translucent — only some light passes; image is blurry. (frosted glass, butter paper, tracing paper)
  • Opaque — no light passes. Casts a sharp shadow. (wood, metal, you, book)
Example
Hold your hand to a bright light: you can't see through (opaque). Hold butter paper: you see a blurry light (translucent). Hold clear glass: you see through clearly (transparent).
💡 Tip:Only opaque objects cast sharp shadows. Transparent objects don't form shadows (or barely).
Prefer a video? Open YouTube search for “transparent translucent opaque class 6

🎯 Try it!

5 questions to check what you just read.

0 / 5
  1. Q1.Clear glass is:
  2. Q2.Butter paper is:
  3. Q3.A wooden door is:
  4. Q4.Which casts a SHARP shadow?
  5. Q5.Frosted window glass is: