Light Basics & Properties
📋 What it is
Light travels in straight lines, incredibly fast, and lets us see when it reflects off objects into our eyes.
🗣️ Coach says
Light is energy that travels in straight lines at the fastest speed there is. You see an object when light bounces off it and enters your eye. In empty space light needs nothing to travel through, and it moves so fast it seems instant over short distances.
🧠 Memory hook
Light = straight-line energy, super fast. You see because light bounces INTO your eyes.
😂 Giggle
Why did the light beam go to school?
To get a little brighter!
😲 Whoa!
Light travels about 300,000 km every second — fast enough to circle the Earth 7.5 times in one blink.
✅ Quick check: Why can you see this page?
Say your answer out loud first — then reveal.
Light bounces (reflects) off the page and travels into your eyes.
Vision happens when reflected light reaches the eye.
🧪 Try it! (2 minutes)
Shine a torch through a slightly steamy room — you’ll see the beam goes dead straight.