Unit 4 Selection 2 "Earth and Space" Vocabulary

Process

• a sequence of events that leads to a conclusion

• a series of actions that lead to a result

• a random occurrence without a specific outcome

• a method of organizing information

essential

• Absolutely necessary for survival

• Not important at all

• Somewhat useful

• Only needed in emergencies

a person trained to travel to space

• astronaut

• pilot

• engineer

• scientist

Universe

• Everything in space, including the sun and planets.

• A large collection of stars and galaxies.

• A vast empty space with no matter.

• The area around Earth where weather occurs.

something that is part of a whole

• element

• component

• aggregate

• collection

something needed for survival

• necessary

• optional

• essential

• unimportant

Similarity

• something that makes things alike

• a difference between two objects

• a type of relationship

• a method of comparison

everything that exists, including all of space

• universe

• galaxy

• solar system

• nebula

something you go through yourself

• experience

• observation

• theory

• hypothesis

something that makes things alike

• similarity

• difference

• diversity

• uniqueness