The ____________ ratio was predicted by the Big Bang theory and helps establish the rate of expansion for the universe.

_______________ (2 words) is how bright a star appears when viewed from Earth.

______________________ (2 words) includes the 4 main sub categories of Geology, Astronomy, Oceanography, and Meteorology.

The concept that the more distant an object is in space, the farther in its past we are observing its light is called _____________________

________________ is the use of the senses to gather and record information.

The  ____________________ states the universe is both infinitely large and eternal, and space is neither expanding nor contracting.

The ______________________ (2 words) diagram shows the relationship between a stars brightness and its temperature.

The branch of astronomy devoted to the study of the physical characteristics and composition of objects in the sky is called ____________________

The _____________________ (2 words) are composed of liquid and frozen gases and orbit outside the asteroid belt.

A statement about what happens in nature that seems to be true 100% of the time is called a ___________________ (2 words required).

A term used to describe objects believed to be fuzzy patches of luminous gas and dust  ________________

A ______________________ gets several thousand times brighter in a few days, and then fades to its original brightness over several months.

_____________________ (2 words) includes all fields of natural science related to the planet we live on.

____________________ may include the use of sight, hearing, or touch.

Answers sought by this field include; How did the Universe begin?  When did it begin? Where did it come from? and How will it end? _______________________________

A _________________________ is 100 to 1000 times the size of the sun.

The science that deals with the earth's physical structure and substance, its history, and the processes that act on it is called _______________.

A _________________ is  what a scientist believes is most likely true.

A branch of philosophy (not science) exploring the fundamental questions, including the nature of concepts like being, existence and reality. ___________________________

A pair of stars that are bound together by gravity is called a _____________________ (3 words).

The continuous flow of charged particles released from the upper atmosphere of the Sun is called the __________________(2 words)

These structures are actually other galaxies outside our own galaxy. ________________________

A suggested, testable answer to a well-defined scientific question is called a _________________.

A stars' ____________________________ (2 words) describes the amount of light that a star actually emits

__________________ (2 words) is the branch of geology that studies the materials, structure, and surface features of the earth and the geologic processes that form them.

_______________ is caused by a light source that is moving away from the observer.

Use of a ________________ generally makes things easier to visualize and understand.

This radiation is left over from an early stage of the universe like a distant flash from the Big Bang itself.  _____________________

A _________________ (2 words) is a very large, cool, bright star.

Mercury, Venus, Earth, and Mars are made of rock and dust and are called the __________________ (2 words)

A(an) __________________ tests the validity of a given hypothesis.

When plotted on a graph that compares surface temperature to brightness, most stars with average mass, lie within a narrow band which crosses the graph diagonally from lower right to upper left.  These stars are called ________________________ (2 words) stars.

According to the _________________ (two words), the sun and planets condensed out of a large rotating cloud of dust and gas.

Faster expansion of the universe would have produced more _________________ that we see in today.

A ______________ represents something that is too complex, difficult or dangerous to observe or test directly.

A _____________________ (2 words) star brightens and then fades in a regular repeating pattern over time.

The amount by which you look into the past  is equal to the distance to the galaxy measured in _________________________

The branch of Geology that tries to reconstruct the geologic events of Earth's past is called _________________ (2 words)

What color is the longest wavelength of visible light? ________________

A _______________ could affect the results of an experiment.

The word __________________ means “new star”.

The _________________ model was first proposed and supported by Einstein.

A large cloud of gas and dust in space is called a __________________.

This is the “Effect” in a cause and effect relationship. _______________________________

Stars with very high mass may expand and form a _____________________ at the end of their life.

_______________________ studies the composition, processes and phenomena of the atmosphere.

The ___________________ (2 words required) is controlled and changed by the experimenter in order to see how it effects other factors.

The distance a beam of light would cover in 1 year is called a ____________________.

The science of __________________ includes everything from the composition and movements of sea water to the plants and animals that live in it.

_______________________ (2 words required) are always in numeric (number) form.

___________________ (3 words) orbit around a mutual fixed point in space called the center of mass.

The current theory of how our solar system formed is called the __________________ (2 words).

Recorded observations or items of information are called _________________.

A formation of stars, like Orion or The Big Dipper is called a ______________________.

The science of ___________________ studies celestial objects, space, and the physical universe outside of our planet.

The ____________________ (2 words required) responds to changes in another factor.  

In astronomy, a _______________ is used to measure distances to things that are relatively close. Large distances are measured in parsecs.

A primary focus of __________________ is forecasting the weather.

______________________ (2 words required) describe actions, color, textures, and other traits not easily measured.

The properties of dark matter, dark energy, black holes and worm holes would be part of the science of ...._________________________________