What is a beam? A beam is a ray of light whose edges can be seen.

Beam (of light)

A lighthouse with beams of light coming from its bulb to warn ships of the position of the coast.

A beam of light is a wide ray. You see beams of light coming from lighthouses as shown here. If a cloud partially blocks the Sun, you may also see beams of light coming through gaps in the cloud. These are sunbeams.

Video: Lighthouse.

Explore these further resources...

(These links take you to other parts of our web site, never to outside locations.)

You can search in these books:

You can look in this topic for more books, videos and teacher resources:

Jump to Light and shadows toolkit screen

The toolkit screen link will take you to a library containing a selection of:
an i-topic, more books, pictures, videos and teacher's stuff related to the search word.