Critical Vocabulary

Something is very large.

• vast

• principle

• cosmic

• ascend

__________ are people who navigate ships, such as sailors.

• Mariners

• Forged

• Vast

• Principle

Something that is __________ is beyond Earth and its atmosphere.

• cosmic

• ascend

• mariners

• forged

To __________ is to go up.

• ascend

• mariners

• forged

• vast

A scientific __________ is a rule that explains how something in the natural world works.

• principle

• cosmic

• ascend

• mariners

A metal object that was __________ was heated in a special furnace and hammered into shape.

• forged

• vast

• principle

• cosmic