Images, color, or information behind the main one.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

very noticeable or marked. To say the sounds of words in a correct way.

Cooking appliance using electromagnetic waves. To heat or cook something in a microwave.

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. greet someone arriving in polite or friendly way.

Glow sometimes seen in the sky after sunset the pleasure of remembering some pleasant event.

all existing matter and space considered as whole.

act of exploding.

optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. slide or cause to slide into itself, so that it becomes smaller.

find unexpectedly or while searching.

information indicating whether something is true. be or show evidence of.

Learning something for the first time.

intellectual and practical activity encompassing systematic study of structure and behaviour of physical and natural world.

give detailed account in words of.