Show:
The Moon
The Earth
EM Spectrum
Star Birth
Star Death
100

The name of the planet that struck early Earth 4 billion years ago*

What is Thea?

100
Earth's first layer. 

What is the crust?

100

The electromagnetic spectrum travels in this form.

What are waves?

100
The birthplace of stars.
What is a nebula?
100
Run out of fuel or cannot fuse iron.
What are the reasons stars begin to die?
200

The process that allowed gravity to pull the shattered pieces of the Moon together.



What is accretion?

200

The green, red, or purple light at the poles caused by the interaction of the Earth's magnetic field and solar flares. 

What are the Northern Lights or Aurora Borealis?

200
The distance between a wave's troughs or crests.
What is wavelength?
200
The process in which hydrogen creates helium.
What is fusion?
200
The stage when average stars begin to swell and die.
What is red giant?
300

The answer is 3.7

What is the diameter ratio of the Earth and Moon?

300

The inner core.

What is the fourth layer of the Earth?

300
The time it takes for one wavelength to pass a given point.
What is frequency?
300

The hottest star color.

What is blue?

300
The theoretical end-stage of average sized stars.
What is a black dwarf?
400

The answer is 1:49.

What is the Earth to Moon volume ratio?

400

The energy field that protects Earth from solar radiation.

What is the magnetic field?

400
Part of the EM spectrum with longer wavelengths and a lower frequency next to visible light.
What is infrared?
400

New stars that cannot be seen by the human eye.

What are protostars?

400
Material created when massive stars explode in a supernova.
What are elements 2-92 on the Periodic Table?
500

Two conditions, named in Newton's Law of Gravitation, that affect how objects in space condense.

What are distance and mass?

500

An occasional event that occurs on Earth during the day at New Moon*

What is a solar eclipse?

500

Radio wave, microwave, infrared, ultraviolet, Xray and gamma wave. 

What is invisible light?

500

Light, heat, electricity and magnetism

What are the forms of energy given off by fusion, also known as plasma?

500

Small remnants of condensed supernovae that give off radio waves.

What is a neutron star, also known as a pulsar?