Earth
Solar System
The Moon
Remember this?
Use a calculator
The Earth is a sphere
100

This picture shows THIS season in the southern hemisphere.

What is winter

100

This is the type of planet that our Earth and Mercury are.

What is a rocky or terrestrial planet?

100

This lunar phase happens when the moon is in between the earth and the sun, with no solar eclipse.

What is a new moon?

100

This is what class of star our Sun is currently.

What is a main sequence star?

100

How many minutes there are in a day.

What is 1440 (24 hours/day)?

100

This is how a lunar eclipse happens.

The spherical earth gets in between the Sun and the Moon, casting a shadow on the moon.

200

How many hours it takes for Earth to make one full rotation on its axis

What is 24 

200

This is the theory of our solar system that had the Earth in the center, and everything revolving around US.

What is Geocentrism (Geocentric)

200

This type of eclipse happens when the Earth gets in between the sun and the moon, and casts a shadow on the moon.

What is a lunar eclipse?

200

The name for this diagram:

What is the Hertzsprung-Russell (HR) diagram?

200

How many hours there are in the month of December.

What is 744 hours?

(31 days * 24 hours/day)

200

What we would observe as ships sail away on a flat earth.

What is the ship getting smaller and smaller but still completely visible? 
300
In the northern hemisphere, Spring is also called THIS.

What is the March Equinox

300

This is the name of the 5th planet from the sun

What is Jupiter?

300

The moon both rotates on its axis once and revolves around the Earth once in this many days.

What is 29.5 days?

28-30 days accepted.

300

This is a piece of evidence for the big bang theory that involves the doppler effect in star spectra.

What is redshift?
300

How many inches there are in 3 meters (there are 2.54 centimeters in an inch).

what is 118 inches?

300

This was the prevailing view of the shape of the earth when Jesus was walking around on it.

What is a sphere?

400

How many hours of daylight the north pole has on the December solstice.

What is 0.

400

This is the astronomical observation that was explained in geocentrism by epicycles.

What is the planets wandering over the night sky over the course of a year?

400

The moon phase depicted here:

What is a 1st quarter moon?

400

This is the approximate age of the universe according to the big bang theory.

What is 14 billion years old?

400

The circumference of Earth at the equator in miles, if the radius of Earth is 6,371 kilometers.

 C=2pir 

There are 1.6 km in 1 mile.

what is (approx.) 25,000 miles?

400

Eratosthenes used geometry and THIS phenomena to calculate the diameter of the Earth to within 2% of its actual value in 200BC!

What are the shadows at noon at 2 different cities?

500

The reason we have day and night.

What is Earth's rotation on its axis

500

This is the reason the inner and outer planets are made of different materials

What is the Sun's energy/heat causing all the lighter elements to be lost from the inner planets and gather in the Gas and Ice giant planets.

500

This is how many days are in between each lunar phase.

What is 3.5 days?

500

This is the coolest and most dim class of stars, that have the longest lives.

What are red dwarfs?

500

How fast the earth is traveling around its orbit in miles per hour if

Circumference =2pir 

Distance Earth to sun =9.17*10^7miles

There are 8760 hours in 1 year.

What is (approximately) 65,773 mph?!!!

500

In 2021 one of the longest direct flights was taken between THESE 2 cities (You can get credit if you name the cities or their countries correctly).  It flew directly across Antarctica, without entering the Northern Hemisphere, which would be impossible on a flat Earth.

What are Buenos Aries (Argentina) and Darwin (Australia)?

600

The angle that Earth's axis is tilted at.

What is 23.5 degrees?

600

This is an interesting fact about a planet other than Earth.

What is.... (MANY correct answers)

600

This is the name of the moon phase pictured.

What is a waning Gibbous moon?

600

This is the label of the Y-axis of the HR digram.

What is luminosity?

600

Eretosthenes figured out from shadows that the distance between Alexandrea and Syene (800km) was 7 degrees of the Earth's total circumference. What did he calculate as the total circumference of the Earth based on these measurements?

600

This would be the impossible pattern of light on the Earth during THIS season

What is the December solstice OR southern hemisphere summer solstice OR Northern Hemisphere winter solstice

M
e
n
u