Light and reflection: light rays

Learning Material  |  Interactive Lesson

Investigate whether light rays always travel in straight lines. Rotate circular walls, each of which has a single opening. Position the walls so that light from a central bulb can be seen by a person outside the walls. Make shadows by placing a range of objects between a light source and a screen. Position shapes to make a shadow animal. Notice that shadows are larger when more light is blocked. This learning object is a combination of two objects in a series of six objects.

Students relate the size of a shadow to the proximity of an object to a light source.
Students combine simple shapes to cast a shadow having a complex shape.
Students observe that light travels in straight lines.
Students observe that light is blocked by solid objects such as an opaque wall.

Curriculum Information

K to 12
Grade 7, Grade 4
Force Motion and Energy Earth and Space Force and Motion
Learners, Students

Copyright Information

Education Services Australia
Use, Copy

Technical Information

0 bytes
Adobe Flash Player -