Rocks and Minerals
Spinning and Orbiting
Reasons for the Seasons
Planetary Neighbors
Moon Phases
100

This type of rock forms when lava or magma cools and solidifies.

What is igneous rock?

100

Earth spinning once on its imaginary axis, which takes approximately 24 hours.

Rotation

100

Earth's axis is tilted at approximately this many degrees relative to its orbital plane.

What is 23.5 degrees?

100
  • The four inner planets—Mercury, Venus, Earth, and Mars—are primarily composed of rock and metal and are called by this term.

Terrestrial Planets

100

What comes after a full moon?

Waning gibbous

200

 Layers of compressed sediment, often containing fossils, form this rock type.

What is sedimentary rock?

200

The movement of one object around another in space, such as Earth traveling around the Sun once every 365.25 days.

Revolution

200

When the Northern Hemisphere is tilted directly toward the Sun, it experiences this season.

Summer

200

This giant gas planet is the largest in our solar system and features a famous storm called the Great Red Spot.

Jupiter

200

What moon phase does the phases start with?

New Moon

300

Extreme heat and pressure deep underground change existing rocks into this type

What is metamorphic rock?

300

Earth's rotation directly causes this daily cycle experienced on the surface.

What is day and night?

300

Two days during the year when day and night are equal in length everywhere on Earth.

Equinoxes

300

The band of rocky remnants separating the inner terrestrial planets from the outer gas giants.

The Astroid Belt

300
What comes after a waxing cresent?

1st Quarter

400

The continuous geological process where rocks transform from one type to another over millions of years.

What is the rock cycle?

400

The shape of Earth's orbit around the Sun, which is not a perfect circle.

What is an ellipse (or elliptical path)?

400

True or False: Earth is closest to the Sun during summer in the Northern Hemisphere.

False

400

Venus is the hottest planet in the solar system despite not being closest to the Sun due to this thermal effect trapped in its thick carbon dioxide atmosphere.

What is the runaway greenhouse effect?

400

What comes after a waning gibbous

3rd Quarter

500

The scale used by geologists to measure a mineral's resistance to scratching, running from 1 (talc) to 10 (diamond).

What is the Mohs Hardness Scale?

500

The speed of Earth's rotation combined with its atmosphere creates this force that curves wind patterns and ocean currents.

What is the Coriolis Effect?

500

During winter, direct sunlight hits at a low angle, causing light rays to spread out over a larger area, resulting in this type of energy distribution.

Indirect

500

The outer ice giant planet with the strongest winds in the solar system, named after the Roman god of the sea.

Neptune

500

What causes the Earth's Tides

The moon's gravitational pull