Origin & Structure of our Universe
Galaxies & Stars
Solar System
Planetary Motions & Seasons
Sun, Moon, & Earth
100

The age of our universe.

What is 13-14 billion years old?

100

Galaxies are classified by this property.

What is shape?

100

The age of our solar system.

What is 4.6 billion years old?

100

Planet with the shortest day.

What is Jupiter?

100

The name of this moon phase.

What is third/last quarter moon?

200

The oldest light found all over the universe.

What is cosmic microwave background radiation?

200

The force that holds everything together in a galaxy.

What is gravity?

200

Dense, rocky, and smaller planets that are closest to the Sun.

What are terrestrial planets?

200

The time it takes Mercury to complete its orbit twice.

What is 176 days?

Solution:
Period of Revolution = 88 d
88 x 2 = 176 d
200

The Moon phase at position 4.

What is waning gibbous?

300

Represented by letter D.

What is wavelength?

300

The process by which stars generate energy.

What is nuclear fusion?
300

A frozen ball of gas and dust that orbits the Sun.

What is a comet?

300

Planet with the most circular orbit.

What is Venus?

300

A neap tide occurs during these 2 moon phases.

What are first quarter and 3 quarter moons?

400

Visible light with the LOWEST frequency.

What is red?

400

The next life stage for Pollux.

What is white dwarf?

400
Two factors that affect the gravitational attraction between objects.

What are distance and mass?

400

The angle by which Earth's rotational axis is tilted.


What is 23.5 degrees?

400

This type of eclipse occurs during a full Moon.

What is lunar eclipse?


500

The phrase that is used to describe the stretching of light from distant galaxies as the galaxies move away from Earth.

What is red shift?

500

A yellow star with a luminosity of 100,000 times the Sun's is most likely in this life stage.

What is supergiant?

500

The number of kilometers in 1 astronomical unit (AU).

What is 149.6 million kilometers?

500

The season experienced by NYC (located in the northern half of the Earth) when the earth is in this position in relation to the Sun.

What is winter?

500

The amount of time it takes the Moon to complete 1 lunar cycle (all phases of the moon).

What is 29.5 days?