Unit 7: Light Energy

Learning Goals

By the end of the unit, students will be able to:

Recalling accurate science

• Identify sources of light as emitted or reflected.

• Classify a set of objects as transparent, translucent and opaque.

• Explain that light is faster than sound.

Interpreting and communicating science concepts

• Investigate the difference between light that is absorbed, reflected and refracted.

• Explain how we see color due to the reflection and absorption of light.

• Demonstrate the refraction of light that results in the separation of colors using a flashlight and prism (or the sun).

• Model the amount of light that can pass through a transparent, translucent or opaque material.

Demonstrating science knowledge

• Compare temperatures of a substance (e.g., water, sand) that is heated by a light shining on it at different angles or intensities. (this will be a class demo)

• Describe the relationship between the angle and the change in temperature. (this will be a class demo)

Designing technological/ engineering solutions using science concepts

• Design a shelter for daytime use on hot sunny days. Design the shelter so that it keeps the inside temperature as cool as possible.

• Create a model/illustration of a building and explain the usefulness of different materials in the design with relationship to light energy. Identify locations where transparent, translucent and opaque materials are appropriate.