Standard #: SC.3.P.10.3


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Demonstrate that light travels in a straight line until it strikes an object or travels from one medium to another.


General Information

Subject Area: Science
Grade: 3
Body of Knowledge: Physical Science
Big Idea: Forms of Energy -

A. Energy is involved in all physical processes and is a unifying concept in many areas of science.

B. Energy exists in many forms and has the ability to do work or cause a change.

Date Adopted or Revised: 02/08
Content Complexity Rating: Level 2: Basic Application of Skills & Concepts - More Information
Date of Last Rating: 05/08
Status: State Board Approved
Assessed: Yes

Related Courses

Course Number1111 Course Title222
5020040: Science - Grade Three (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7720040: Access Science Grade 3 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2023, 2023 and beyond (current))
5020100: STEM Lab Grade 3 (Specifically in versions: 2016 - 2022, 2022 and beyond (current))


Related Access Points

Access Point Number Access Point Title
SC.3.P.10.In.3 Identify that light may come from different sources, such as the Sun or electric lamp.
SC.3.P.10.Su.2 Recognize examples of sources of light, such as the Sun or a flashlight.
SC.3.P.10.Pa.2 Distinguish light and dark.


Related Resources

Lesson Plans

Name Description
Light the Way

Students will learn about some of the behaviors of light, specifically refraction, through a video, a kinesthetic activity and summarizing informational text. Students will be able explain what causes a shadow by understanding the way light travels as well as explain refraction of light. This lesson can be completed in two 40 minute time periods or over two days.

How Light Moves Students are fascinated with light. In this lesson plan, students investigate some of the properties of how light is propagated, and using observations from simple experiments, test their predictions about the paths that light takes with different materials.

Teaching Idea

Name Description
Mirror, Mirror On the Wall: Angles of Reflection In this activity, students are challenged to put a mirror on the wall, cover it, and find locations where they think they can see each other in the mirror. Through the activity, students find that light reflects at an equal angle as it arrives. Students then can explore a Java applet that demonstrates that the angle at which light is reflected is equal to the angle at which it arrives.

Unit/Lesson Sequence

Name Description
Light Energy

In this unit, students first explore the different forms of energy using their senses. In the next two lessons, emphasis is placed on light energy and how light interacts with other objects.

Virtual Manipulative

Name Description
Star Light Star Bright

Star Light, Star Bright explores the nature of the electromagnetic spectrum. In a series of four mini-lessons, the different properties of waves and the relationship that exists between energy, wavelength, and frequency will be covered. Activities are "Catch the Waves", "Making Waves", "Heating Up", and "Stellar Encounters." Be sure to view the brain teasers and light facts on each page.

Student Resources

Virtual Manipulative

Name Description
Star Light Star Bright:

Star Light, Star Bright explores the nature of the electromagnetic spectrum. In a series of four mini-lessons, the different properties of waves and the relationship that exists between energy, wavelength, and frequency will be covered. Activities are "Catch the Waves", "Making Waves", "Heating Up", and "Stellar Encounters." Be sure to view the brain teasers and light facts on each page.



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