Anything that can be used to prove something. Facts.
Evidence
100
A large cloud of gas and dust that contracts under gravitational force and breaks apart into smaller pieces, each of which forms stars. Stars are born here.
Nebula
100
This consists of all of space and everything in it.
Universe
100
A large group of stars, planets, moons, asteroids, comets, dust and gas held together by gravity.
Galaxy
100
Why do I weight more on Jupiter.
The mass of Jupiter is greater than the mass of Earth, therefore it has a stronger gravitational pull.
200
A galaxy that swirls and has "arms" containing younger stars reaching out from old stars at the center.
Spiral galaxy
200
This is what holds planets in their position within a solar system.
gravitational pull
200
The sequence or stages a star undergoes during its lifetime, from birth to death.
Star Life Cycle
200
The distance light travels in one year.
Light Year
200
When objects are placed in order, we use these numbers to tell their position.
Ordinal number
300
A galaxy that does not have a clearly defined shape and structure. It contains a large amount of gas and dust, and the stars are young.
Irregular Galaxy
300
An empty area of space. No air inside this one.
Vacuum
300
A place where something begins, where it comes into being (life). Example: where were you born. What is your _____________?
Origin
300
A galaxy shaped from spherical (round) to oval. These are the most common types of galaxies.
Elliptical Galaxy
300
This is how long it takes light to travel from the sun to Earth.
8 minutes
400
The planets in our solar system do this around the sun.
Rotate
400
The strength of something, like a star's brightness or an earthquake.
Magnitude
400
This is the planet closest to the Sun.
Mercury
400
An idea that best explains many observations and helps make new predictions. It cannot be absolutely proved, but it is our best guess.
Theory
400
The distance light travels in one second (in miles per second).
186,000 miles per second
500
A way to organize scientific information, such as radio waves, infrared light, visible light, ultra-violet light, x-rays, and gamma rays. A range of frequencies.
Spectrum
500
This is the fourth planet from the sun.
Mars
500
This instrument studies/measures how matter interacts with light.
Spectrometer
500
This is the mathematical formula for determining the distance light travels in one year. Seconds-minutes-hours-day-month-year.
186,000 x 60 = 1 minute
1 minutes x 60 = 1 hour
1 hour x 24 hours = 1 day
1 day x 365 = 1 year
500
This is when an objects travels around and around a planet.