Earths Moon
What produces the phases of the moon?
What is reflected sunlight or the Moon's revolution around Earth?
you can only see a solar eclipse when you are standing Where?
what is in the moons Umbra?
In the core of a star, atoms of this lightest element fuse to form helium.
What is Hydrogen?
This is the longest stage of a star's life, during which it is stable and fusing hydrogen into helium.
What is the Main Sequence?
What is the side of the moon that cannot be seen by Earth called?
What is the far side
How many high tides and how many low tides in a standard 24-hour period do most coastal areas experience?
What is two of each?
(Two high, two low).
This is the visible "surface" of the sun that we see from Earth
What is the photosphere?
This "recycled" star is the small, hot, dense core left behind after a Red Giant sheds its outer layers.
What is a White Dwarf?
What is a New Moon
The lighter part of a shadow where light is partially blocked
What is the Penumbra?
In this layer, energy is transported outward by the physical rising of hot gas and the sinking of cooler gas, similar to a boiling pot of water.
What is the convective zone?
This "infant" star has begun to heat up and glow due to gravity, but has not yet started nuclear fusion in its core.
What is a protostar?
How long is one complete rotation of the moon?
What is 27.3 Days
This specific phase of the moon is the only time a solar eclipse can occur.
What is a New Moon?
Energy travels through this layer in the form of electromagnetic radiation, a process that can take photons over 100,000 years to complete.
What is the radiative zone?
This is the most massive type of star in the universe, which will die in a supernova.
What is a Red Supergiant?
What are the large, dark, flat areas on the moon?
What is a Maria
This happenss when the entire moon moves through earths umbra.
What is a total lunar eclipse
Astronomers use the Hertzsprung-Russel (H-R) Diagram to plot stars based on What?
What is their temperature and luminosity (brightness)?
The biggest stars are because they have expanded so much, their surface temperature drops, which is why they glow red instead of white or blue.
What is a red giant