Objective: SWBAT identify different types of light and understand that different types of light have different effects by completing a hands on activity.
Do Now:
Question 1
1.
How do you think the amount of sunlight impacts the rate of skin cancer around the world?
CFS:
Accurately identifies the differences in the outcome of two tests or trials
Accurately describes the relationship light and skin cancer
Explanation includes 1-2 pieces of supporting evidence/reasoning.
Exit Ticket Review:
How and why did the light you selected impact genetic material in a skin cell?
Guided Notes:
Question 2
2.
Vocabulary:
Emit: to give off
Light source: an object that emits light
Why is Australia’s skin cancer rate so high? (select a claim)
Claim 1: Australia gets a lot of sunlight.
Claim 2: There is something different about the sunlight in Australia
Claim 3: More people in Australia have skin that is easily damaged by light from the sun.
Question 3
3.
Video: Is all light the same? Explain what differences and similarities you see.
CFS:
accurately identifies changes in light types
describes the relationship light types and their outcome
"I (do/don't) think all light is the same. I think some differences are ... "
Practice:
Explore the Simulation:
Amplify Science:
Unit 6: Light Waves
Chapter 2: Changes Caused by Light
Lesson 2.1: Exploring Change from Light
Challenge: Have a light source touch all three objects below in the same trial!
Materials:
Light Sources
1. Sun
2. Light bulb
3. Laser
· Aluminum foil
· Sunscreen
· Genetic Material
Lab steps:
1. Shine each light source on three different objects: Aluminum foil, Sunscreen, Genetic Material
2. Try to get the light source to touch each object.
Question 4
4.
The Effects of Different Light Sources
Emit the light source on each material to help you answer the Investigation Question: Is all light the same?
Record your observations in the table below. Describe the effects of the light emitted from each flashlight, and note whether they are different from one another.
Question 5
5.
Reflection: Based on your observations, is the light emitted from the Sun the same as the light emitted from the Light bulb? How can you tell?
CFS:
Accurately identifies the differences light sources
Accurately describes the relationship light and its effect on another object
Explanation includes 1-2 pieces of supporting evidence/reasoning.
"Based on my findings I think that the light from the Sun is different than the light bulb.
This is because ....
There were changes because ... "
Exit Ticket:
Question 6
6.
Jonathan claims that light is always the same, even when it is emitted by different light sources (like the sun and a light bulb). Do you agree, disagree, or neither?
CFS:
Accurately identifies the differences light sources
Accurately describes the relationship light and its effect on another object
Explanation includes 1-2 pieces of supporting evidence/reasoning.
"I think all light is the (same/different). I think this because some light sources can cause changes by ... . Others do not cause changes because ... "