Vocabulary

• instead of: When one thing is replaced by another
• on earth: Used to emphasize a question expressing surprise or anger.
• search for: To try to find someone or something.
• think of: To look on as (being something specific); consider
• at last: Finally; after a long delay.
• for example: As an illustration or instance.
• in advance: Ahead of time; before something happens
• drop by: To visit someone or some place for a short time
• on the ground: Located on the surface of the earth.
• past it: No longer capable or effective due to age or declining condition.
• threat to: A person or thing likely to cause damage or danger.
• seek out: To look for and find someone or something, especially when it is not easy to find.
• used to: Did regularly before, but don't do now
• out of the way: Remote; isolated.
• massive: Very big; large; too big
• vital: Needed to support life; essential
• reveal: To show something that was hidden before
• technique: Way of doing by using special knowledge or skill
• effort: Amount of work used trying to do something
• exaggerate: To makes things seem more extreme than reality
• determine: To control exactly how something will be or act
• roughly: Approximately; (of numbers) about; around
• prevent: To stop something from happening or existing
• reflect: To indicate or be a sign of something
• precisely: In an exact and accurate manner
• condition: To improve something to make it better
• cruise: To easily achieve
• predict: To guess or estimate what will or might happen
• numerous: Existing in large numbers
• cause: Belief, goal or organization that people support
• orbit: Path an object takes as it circles another object
• form: Sports team or person's current winning record
• precision: Performed in a very careful, detailed manner
• advance: Forward movement by an army
• nudge: To touch or push something gently
• rest: Time when one relaxes, sleeps, or is inactive
• extinction: When every example of animal, plant is dead
• altitude: Height of something above sea level
• object: Something you can see or touch, but is not alive
• vary: To change something and make it different
• emit: To release or send out (a gas, etc.)
• asteroid: Very small planets that move around the sun
• hit: To have a negative impact on a person/place/thing
• system: Set of organized, planned ideas that work together
• explode: To express an emotion in a sudden and loud way
• fragment: Part that is broken off of something
• hazardous: Involving danger, risk, and potential damages
• melt: To disappear or to go away
• build: Your physical shape; physique
• thermal: Item of warm clothing for cold weather use
• solar: Concerning the sun, or its heat
• archive: To store things such as historical records
• coal: Dark hard substance from the earth burnt as a fuel
• cosmic: Concerning space and the universe
• space: Empty area kept for a specific reason, like a car
• discover: To find something new that was not known before
• part: Division of a book
• milestone: Significant event in your life (or in a project)
• steadily: At a steady rate or pace; reliably; constantly
• design: To plan in a particular way to fulfill a purpose
• underway: Happening now
• travel: To go to a place that is far away
• propulsion: Forward movement often under power
• snag: To catch something on something sharp
• telescope: Tube-shaped device used to see a great distance
• earth: Wire connecting an electrical device to the ground
• dark: Of a color that is not light
• show: To be easily seen or displayed
• study: To focus on learning something usually at school
• credible: Believable; that can be believed or trusted
• large: Big; of great size; broad, tall, wide, or fat
• early: Coming/happening before others in a time sequence
• luminous: Producing or reflecting a large amount of light
• nickel: American coin worth 5 cents
• decimate: to kill a large number of something, or to reduce something severely
• calculus: Branch of math dealing with rates of change, etc.
• fractional: Relating to a part of a whole thing