Moon
Earth & Seasons
Water & Air
Weather & Climate
Solar System
100

The number of phases that make up the moon cycle

What is eight phases?

100

This season begins near the end of September

What is Fall (Autumn)?

100

This is the gas that makes up most of (78%) the Earth’s atmosphere

Nitrogen

100

As altitude increases, pressure in the atmosphere...

Decreases

100

The innermost planet of the solar system

What is Mercury?

200

The phase where the entire moon is illuminated

What is a full moon?

200

The motion of the Earth that occurs relative to its axis, taking a day to complete

What is rotation?

200

This is the second most common gas (21%) in the atmosphere

Oxygen

200

This type of pressure system is associated with bad weather (clouds / rain) because the air is rising upwards

Low pressure system
200

This planet has the longest orbit in the solar system

What is Neptune?

300

The darkest part of the moon's shadow during a solar eclipse

What is the umbra?

300

Rather than "nearly circular," this shape better describes the Earth's orbit

What is an ellipse?

300

The density of water or air decreases when the temperature ... 

Increases

300

The phrase “cool air sinks” and “hot air rises” describe which heat transfer process?

Convection

300

Rocky objects that form a belt between Mars and Jupiter

What are Asteroids?

400

The eclipse that occurs when the Earth blocks direct sunlight from reaching the moon

What is a Lunar Eclipse?

400

The tilt (measure) of the Earth's rotational axis, which remains constant during its revolution around the Sun and causes the seasons

What is 23.5 degrees?

400
Salinity is the measure of how much of what is dissolved in water?

Salt

400

What type of gases insulate or regulate Earth’s temperature?

Greenhouse gases

400
Sediments containing iron on this planet's surface give it a particular color

What is Mars?

500

In what part of the Moon's shadow must an observer stand in order to witness a Partial Solar Eclipse?

What is the penumbra?

500

In the month of January, this Hemisphere receives more hours of daylight and, thus, experiences Summer

What is the Southern Hemisphere?

500

 A large system of circulating ocean surface currents

What is a gyre?

500

This layer of the atmosphere is where weather occurs

Troposphere

500

This planet has the greatest number of moons in the solar system

What is Saturn?