Science

a meteoroid is a piece of a comet or asteroid that has impacted a surface, while a meteorite hasn't yet

the mass of a star affects its life cycle and revolution

arrange the following from smallest to largest:
1.white dwarf
2.nebula
3.neutron star
4.spiral galaxy
5.virgo supercluster
6.red supergiant

red giants the size of our sun turn red and grow larger when running out of Helium fuel

Telescope HIPPARCOS has used parallax to measure more than 100,000 stars

dark matter and dark energy are used to explain the behaviours of distant galaxies

95% of a star's lifespan is spent in the main sequence

A globular cluster is held together by gravity and is vaguely spherical while an open cluster are stars that formed from the same gas cloud

meteors are the leftover chunks of rock found in craters

A satellite is an object that revolves around a planet

A solar mass is the mass of our sun

nuclear fusion reactions of a star occurs in its

Why does the same side of the moon always face us? Because

a solar eclipse occurs when

Think about the following:
1. The difference of Mercury's orbit compared to earth's due to its close proximity to the sun?
2. Why does Canada need more than 1 timezone?
3. More people are able to observe a lunar eclipse than a solar eclipse. Why?
4. What is the process of nuclear fusion in stars?
5. How to find the distance to a star using parallax
6. Was the $6 on the Hubble Space Telescope well spent?
7. What does the blue-shifted light from Andromeda tell us about its movements?

A parallax is

Elliptical galaxies are labeled from E0 to E6 based on their shape

Spiral galaxies are labeled from a - d for the tightness of their 'arms'

asteroids can be as small as 50m in diameter

Irregular galaxies are large clouds of hydrogen and old stars. It has no shape but possess an axis of symmetry

Polaris is only visible to the southern hemisphere during Fall and Winter

the arms from a barred spiral galaxy extend from the end of its bar

a red supergiant is more than 8 times the size of the sun

A protostar is a young star

An asteroid is made up of ice, rock, and dust

Redshift and leftover helium are the best proof for the big bang theory

the _____ is at the center of our solar system

[d = 1/p] as in [parsec = 1/parallax angle]

a _____ shift indicates stars moving away and a _____ shift means they are coming closer

arrange the following from coolest to hottest:
1.blue supergiant
2.white dwarf
3.red giant
4. yellow main sequence
5. orange main sequence

mysterious bursts of gamma rays observed in 1965 may by caused by

Saturn is 1.433 billion km from the sun which is equivalent to approximately

stars are _____ objects because they produce light within the EM spectrum

spiral galaxies consist of a disk, a centric bulge, and a halo

white dwarfs are small, hot, and dim

Pluto is no longer a planet because

the big bang occurred _____ years ago

the earth revolves around its axis and rotates around the sun

Each galaxy emits a unique set of light

arrange the following stages in order:
1.supernova
2.neutron star
3. nuclear fusion
4. nebula
5. protostar

A neutron star can form if its original size was more than 10 solar masses

during our _____ (season) the northern hemisphere points towards the sun the most

the New Moon is not visible from earth