to travel through a region for purpose of observation and discovery
When the children found the cave, they explored it.

a sharp, bone-like part seen on some animals' heads, like cattle or sheep
Animals with big horns scare me.

a large island in the North Atlantic between Greenland and Scandinavia
About half of the total population of iceland lives in its capital city of Reykjavik.

a sheet of strong cloth used to catch the wind
The sail blew off the windmill.

to cause to take up residence
The Pilgrims settled in the Northeastern part of the United States.

a shape with four sides that are all the same length and four corners that are all right angles.
A die is in the shape of a square.

to take control of something from another person or thing
A new person will take over his role as manager.

buying and selling or exchanging goods
The two leaders decided to expand trade between their two countries.

any of the Scandinavian pirates who plundered the coasts of Europe from the 8th to 10th centuries
Erik the Red and his son Leif Ericsson are two commonly known vikings.

conditions that exist in the atmosphere e.g. hot, cold, rain etc
The weather in Korea is very cold in winter.