Unit 1
Unit 2 (stars)
Unit 3 (cosmology)
Unit 4 (planets)
Scientists
100

This is the difference between mass and weight. 

What is the amount of matter in an object? What is the pull of the planet's (Earth's) gravity on the object? 

100

This is the spectral order of stars. 

OBAFGKM

100

This is the shape of the universe. 

What is flat? 

100

This is the order of the planets. 

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. 

100

This scientist was the first to propose in a long time that the planets orbited the sun. 

Who is Copernicus? 

200

This astronomical event involves the shadow of the Moon on the Earth. 

What is a solar eclipse? 

200

This is the most important characteristic of a star. 

What is mass? 

200

This is the weakest of the four fundamental forces. 

What is gravity? 

200

Which method has found the most exoplanets? 

What is the transit method? 

200

This scientist created 3 laws to describe planetary motion. 

Who is Kepler? 

300

This causes stars to twinkle. 

What is turbulence in the atmosphere?

300

These are the two possible outcomes of a high mass star 

What is a black hole and a neutron star? 

300

This is the fate of the universe 

What is old, dark and lonely?

300

This theory describes how the solar system formed. 

What is nebula theory? 

300

This scientist is known as the father of modern physics. 

Who is Isaac Newton? What are his three laws?
400

This wavelength of light has the highest frequency. 

Purple. (or Gamma or Blue.) why would all three of these answers be correct? 

400

This is how we find the masses of stars. 

What are orbits?

400

This mysterious force is accelerating the clusters of galaxies apart. 

What is dark energy? 
400

This is the difference between a planet and a dwarf planet. 

How did planets clear their orbits?

400

This scientist discovered that galaxies are moving away from each other. 

Who is Hubble? What is Hubble's law?

500

This is the phase where the moon rises at sunset. 

What is a full moon? 

500

These are the things the position of a star on the H-R diagram tells us about it. 

What are mass, luminosity, temperature and life phase? 

500

This is the oldest light we can see.

What is the Cosmic Microwave Background? 

500

How do we know the age of the solar system? 

What is radiometric dating 

500

This scientist developed two theories that gives us our current understanding of spacetime. 

Einstien. 

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