Follows the sun from dawn to dusk to explain how light rays travel, how shadows are formed, how the moon lights up the night sky, and more. Includes activity.
Follows the sun from dawn to dusk to explain how light rays travel, how shadows are formed, how the moon lights up the night sky, and more. Includes a...
Describes how electrical energy is generated in power stations and how it travels through pylons, power cables, and wires into people's homes. Includes activity.
Describes how electrical energy is generated in power stations and how it travels through pylons, power cables, and wires into people's homes. Include...