Broken Pencil SlidesLight Benders Physics Lab: Lesson 1 Junior Scientist HQ The Magic Trick Watch closely! I have a straight pencil. What happens when I put it in this glass of water? "It looks broken!" "It's crooked!" "It grew bigger!" What's Happening? Refraction! Light travels at different speeds through air and water. When light hits the water, it slows down and bends. Air (Fast) Water (Slower) Your Lab Mission 1 Fill your clear cup half-way with water. 2 Slowly place the pencil in the cup. 3 Look from the side at the water line. 4 Draw exactly what you see on your lab report! Observation is Key!
Pencil Bender Lab ReportPencil Bender Lab Report Physics Observation: Lesson 1 Scientist: Date: Mission: Observe how light behaves when it passes through water. Does the pencil actually break, or is it just a trick of the light? Before Water Draw the pencil sitting in the empty cup. In Water Draw the pencil sitting in the cup of water. What Happened? 1. Describe the pencil when it was in the water: The Science Secret The pencil looks broken because of REFRACTION. This happens when light down and . Word Bank: bends, slows Refraction makes light bend!
Lens Detective SlidesLens Detectives Physics Lab: Lesson 2 Junior Scientist HQ Super Sight! Can you read the secret message on your desk? This is way too tiny to read without a special tool! We need a tool that bends light! How it Works Curved Glass A hand lens is curved like a dome. Bending Light The curve bends the light toward your eye, making the object look bigger! Magnification! Detective Mission 1 Find 3 objects with interesting textures (a leaf, fabric, or skin!). 2 Look at them with your eyes first. 3 Use your hand lens to see the microscopic details! Focus Check! Move the lens back and forth until the image is crisp and clear.
Texture Detective LogTexture Detective Log Physics Observation: Lesson 2 Detective: Date: Mission: Use your hand lens to hunt for tiny details that our eyes usually miss. Find three different objects and draw them up close! 1 I am looking at: Normal Sight (No Lens) Detective Sight (With Lens!) 2 I am looking at: Normal Sight Detective Sight 3 I am looking at: Normal Sight Detective Sight Does the lens change the object or the light? It changes the object It bends the light
Water Drop Wonder SlidesWater Drop Wonders Physics Lab: Lesson 3 Junior Scientist HQ A Liquid Tool? We used glass lenses to magnify. But can we make a lens out of pure water? Let's find out! All you need is a single drop. A Magic Drop! The "Dome" Shape It's a Curve! When water sits on wax paper, it pulls together into a rounded dome. Just like the hand lens, this curved shape bends light. Experiment Steps 1 Lay your wax paper over the tiny newspaper text. 2 Use a dropper to place ONE drop of water on the paper. 3 Move the drop over different letters. What happens? 4 Challenge: Add a second drop. Is it bigger or smaller? Handle with Care!
Water Drop Lab SheetWater Drop Wonder Physics Observation: Lesson 3 Scientist: Step 1: The Tiny Text Test Place your wax paper over this box. Add a single water drop on top! THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. LIGHT IS FAST. REFRACTION IS BENDING. WATER IS A LENS. SCIENCE IS COOL. 2ND GRADE DETECTIVES. LOOK CLOSER. CAN YOU READ THIS? SCIENCE SECRETS ARE EVERYWHERE. BEND THE LIGHT TO SEE THE TRUTH. DOME SHAPES MAGNIFY. FOCUS! THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. LIGHT IS FAST. REFRACTION IS BENDING. WATER IS A LENS. SCIENCE IS COOL. 2ND GRADE DETECTIVES. LOOK CLOSER. CAN YOU READ THIS? SCIENCE SECRETS ARE EVERYWHERE. BEND THE LIGHT TO SEE THE TRUTH. DOME SHAPES MAGNIFY. Drawing of One Drop How did the letter change? Drawing of Two Drops Was it bigger or smaller? Why does it work? The water drop has a shape. This shape the light as it passes through. Word Bank: curved bends
Rainbow Catchers SlidesRainbow Catchers Physics Lab: Lesson 4 Junior Scientist HQ A Hidden Secret The light from the sun or a flashlight looks WHITE. But inside that white light, there is a secret rainbow hiding! White light is actually a team made of EVERY color. The Rainbow Maker A Prism! A prism is a special piece of glass shaped like a triangle. It works like a sorting machine. It bends each color of light by a different amount! White Light Rainbow Hunt 1 Hold your prism (or CD) in the light. 2 Wiggle it around until you see a rainbow on the wall or ceiling! 3 Identify the colors in order: ROY G. BIV "Red, Orange, Yellow, Green, Blue, Indigo, Violet!"
Rainbow Hunt ActivityRainbow Hunt Activity Physics Observation: Lesson 4 Scientist: Mission: Catch a rainbow using your prism or CD! Observe the colors closely and record what you find. My Captured Rainbow Draw the rainbow exactly as you see it on the wall or ceiling. Make sure the colors are in the right order! The Order of Colors 1. Red 2. Orange 3. Yellow 4. Green 5. Blue 6. Indigo 7. Violet Science Discovery! Where did all these colors come from? White Light = Every Color!
Color Spin SlidesColor Spin Showdown Physics Lab: Lesson 5 Junior Scientist HQ Rainbow Reverse! Yesterday, we used a prism to turn WHITE light into a RAINBOW. Can we do the opposite? Can we turn a rainbow back into White Light? Yes, we can! The Blending Secret Your Eyes are Fast... but not THAT fast! When colors spin very quickly, your eyes can't see them as separate stripes anymore. The colors blend together in your brain. Since all rainbow colors mix into white, the wheel looks white! Slow: Rainbow Fast: White/Grey Construction Zone 1 Color your spinner exactly like the rainbow. 2 Cut out the circle carefully. 3 Poke a pencil through the center dot. 4 SPIN IT AS FAST AS YOU CAN! Showdown Time!
Color Spin ActivityColor Spin Showdown Physics Lab: Lesson 5 Engineer: Spinner Blueprint Red Orange Yellow Green Blue Indigo Violet Red Steps to Success Color each section a different rainbow color. Carefully cut out the large circle. Use your pencil to poke a hole in the center. Spin the pencil on your desk like a top! The Big Result What color did the wheel look like when it was spinning VERY fast? All the colors mixed together make...
