Life Cycle of a Star
What is a red giant?
star that is in the final stages of the star life cycle and the beginning stages of the death cycle
Do metamorphic rocks melt?
no
What is the thickness of the earth’s crust?
5km under oceans and 30-70km under land
What is eccentricity?
noncircular orbit
What is the first step of the scientific method?
make an observation
What is a white dwarf?
stars that have burned and used all of their nuclear fuel
What is a fossil?
buried remains (or traces of remains) of a once-living organism
What is the thickness of the earth’s mantle?
2,900 km
What is the formula for Newton’s second law?
F = ma
What is the last step of the scientific method?
draw conclusions and record results
What is a black dwarf?
a theoretical celestial object that is formed by the cooling of a White Dwarf
How is a fossil formed?
sediment build up on top of an organism’s remains
What makes up the majority of earth’s volume?
the mantle
What is Kepler’s third law?
the period for a planet to orbit the sun increases quickly with the radius of orbit
What is an observation?
something determined by the five senses
What is a supernova?
a powerful and luminous stellar explosion
How are fossils useful?
they help determine the geologic age of the environment in which they were discovered
What is the thickness of the earth’s inner core?
1,250 km
What is another name for Kepler’s third law?
The Law of Periods
What is an inference?
an educated guess
What is a black hole?
a region in space with an extremely strong gravitational pull
What is an index fossil?
used for dating a specific span of geologic time
What is the thickness of the earth’s outer core?
2,200 km
What is another name for Kepler’s first law?
The Law of Orbits
How is the scientific method helpful?
it organizes thoughts and provides a clear objective