https://staging-search.publisherecms.com/steam/?start=1&count=10&query=light Search results for "light" at https://staging-steam-zoom.publisherecms.com/ 2 1 10 https://staging-steam-zoom.publisherecms.com/zoomtitle/thunder-lightning/ Lightning is a huge electric spark. It begins in a cloud. The air around the lightning gets very hot. It expands quickly. It vibrates. This makes a rumbling or cracking sound. The sound is thunder. https://staging-steam-zoom.publisherecms.com/zoomtitle/light/ Light travels in waves. The light waves form light rays. The rays travel in straight lines. When light shines on an object, some light is absorbed. The rest is reflected back. This lets us see the object.