Order Now Free Trial

About Science A-Z

Resources
- Instructional Units
- Life
  GRADES K-2
  GRADES 3-4
  GRADES 5-6
- Earth & Space
  GRADES K-2
  GRADES 3-4
  GRADES 5-6
- Physical
  GRADES K-2
  - Doing Work
  - Energy
  - Light
  - Properties
  - Magnets
  - Things Move
  GRADES 3-4
  GRADES 5-6
- Process
  GRADES K-2 Tools
  Skills
  GRADES 3-4 Tools
  Skills
  GRADES 5-6 Tools
  Skills
- Resource Types
- Science & Literacy
  Books
  Additional Reading
  Comprehension Supports
  Vocabulary
  Assignable Digital Resources
- Activities
  Hands-On Activities
  - Process Activities
  - Science Fair Resources
  Scientific Argumentation
  - Debates
  Project-Based Learning
  - New Project-Based Learning Packs
  Multimedia
  - Science Videos
  Assignable Digital Resources
- NewNGSS
  Grade K
  Grade 1
  Grade 2
  Grade 3
  Grade 4
  Grade 5
  Grades K-2 Engineering
  - Engineering Design
  Grades 3-5 Engineering
  - Engineering Design
  Middle School Resources

Manage Students
Manage science activity and growth
- View your entire roster.
- Make assignments.
- Track progress with reports.
- Review what's in your In Basket.
Teacher Corner
Technology
Curriculum Correlations
Learning A-Z Levels
- Science A-Z Reading Levels
Helpful Tools

Kids Login

Physical Science

Reading Levels These books contain three developmentally appropriate reading levels for each grade span.

Low
Mid
High

Each level of the book conveys similar concepts, images, and vocabulary.

Light

© kimwhit92/iStock/Thinkstock

Light

Light is a form of energy that allows us to see. This unit helps students explore the properties of light: where it comes from, how it moves, and how it interacts with objects. Objects can absorb light, reflect it, or both. Certain surfaces absorb more light than others. Absorbed light energy turns into heat energy. When an object blocks light, shadows form on the opposite side and resemble the object. Visible light is made up of all the colors of the rainbow. Objects appear colorful because they absorb certain colors of light and reflect others to our eyes. Understanding the physical properties of light helps us anticipate how light will behave as we use it and interact with it. Light also adds to the beauty and complexity of the world around us.

Overview Resources

Book Assembly

Single-Sided

Download Instructions

Double-Sided

Download Instructions

Single-Sided Concept

Download Instructions

Double-Sided Concept

Download Instructions

Sign up to receive our eNews, updates, and offers.

Subscribe You may unsubscribe at any time.

/ / / /

Connect with us on Facebook

Follow Us on Twitter

Watch Us on You Tube

© 2017 LAZEL, Inc. All rights reserved. Learning A-Z, Headsprout, Raz-Kids, and Science A-Z are registered trademarks of LAZEL, Inc. Reading A-Z, ReadyTest A-Z, Vocabulary A-Z, and Writing A-Z are trademarks of LAZEL, Inc. Other trademarks, logos, and service marks used in this site are the property of LAZEL, Inc. or third parties.