Light Detectives Slides
Light Detectives
CASE #001: THE MYSTERY OF GLOW
Clue #1: The Source
A light source is anything that makes its own light.
"Without a source, we would be in total darkness!"
The Sun
Lamps
Fire
Flashlights
Sorting the Evidence
Natural
- Stars and the Sun
- Lightning
- Fireflies (Bio-luminescence!)
Artificial
- Light Bulbs
- Computer Screens
- Street Lights
Clue #2: Reflections
Some objects look like they glow, but they are just bouncing light from a source!
This is called Reflection.
Top Secret Fact:
The Moon is NOT a light source! It reflects light from the Sun.
Moon
Reflector
Water
Reflector
Mirror
Reflector
Case Solved: How we see
1. Source
2. Object
3. Eye
Light travels from a Source, bounces off an Object, and enters our Eyes.
Light Detectives Worksheet
Light Detectives
Official Case File #001
Agent:
Date:
Mission 1: I Spy Evidence
Search the evidence locker below! Circle the Light Sources (things that make light). Put a box around the Reflectors (things that bounce light).
☀️ Sun
🪞 Mirror
🕯️ Candle
🌕 Moon
🔦 Flashlight
💎 Diamond
💡 Lightbulb
🌊 Puddle
🔥 Campfire
🪟 Window
Mission 2: Trace the Path
Use the Word Bank to label the diagram and show how we see.
Label 1
Label 2
Label 3
Object Eye Source
Mission 3: Detective Report
Finish this report for the Chief of Detectives:
My favorite source of light is...
because...
Light Detectives Teacher Guide
Teacher Guide
Case #001: Light Detectives
Mission Overview
Students explore the fundamental properties of light by differentiating between light sources and objects that reflect light. By framing the lesson as a "Detective Investigation," we engage curiosity and encourage detailed observation.
Objectives
- Identify light sources
- Identify reflectors
- Model the path of light
Evidence Key
Mission 1: I Spy
Light Sources (Circle):
Sun, Candle, Flashlight, Lightbulb, Campfire
Reflectors (Box):
Mirror, Moon, Diamond, Puddle, Window
Teacher Tip: Remind students that the Moon does not produce light; it reflects sunlight. This is a common misconception!
Mission 2: Labeling
Label 1: Source
Label 2: Object
Label 3: Eye
Light travels in a straight line from the source, hits the object, and bounces into our eyes.
Detective Debrief
Questioning Framework
- "If we turned off the Sun and every lightbulb on Earth, could we still see the Moon? Why not?"
- "Why do some objects (like a mirror) reflect more light than others (like a dark rug)?"
- "How can we tell if something is a source or a reflector just by looking at it in a dark room?"
Lab Activity: Dark Room Detectives
Take students into a dimly lit room or use a large cardboard box to simulate a "dark room."
Step 1
Place an object inside. Ask if they can see it. (No light source = No sight).
Step 2
Shine a flashlight. Trace the path: Flashlight -> Object -> Eye.