Earth
The Sun
Outer Space
Mostly Mining
Miscellaneous
100

The movement of the earth around the sun

revolution

100

Atomic fusion on the sun is taking place in the ______

core

100

The lowest energy waves coming from the sun, with long wavelengths, are called _________ waves

radio

100

A natural mineral that is valuable enough and in high enough concentrations that mining it would be profitable.

ore

100

True or false: The moon takes 27.32 days to revolve once around Earth, and it takes the same amount of time to turn on its axis.

True

200

The movement of the earth around an axis

Rotation

200

What most closely matches the amount of days it takes for the earth to orbit the sun?

365.25

200

The region of asteroids beyond the orbit of Neptune is the _________ belt.

Kuiper

200

When the moon moves into the shadow of the earth, cast by the sun.

lunar eclipse

200

When water becomes hypoxic, it means it lacks _____

oxygen

300

Asteroids that come within 120 million miles of Earth

near-earth asteroids

300

About how many degrees is the earth’s axis tilted, with respect to its path around the sun?

23.5

300

The flow of charged particles that are emitted from the sun and travel towards the earth is called the:

solar wind

300

What is created when large concentrations of veins of minerals are found in an area?

lode

300

What in the northern hemisphere, refers to the day of the year that has the longest number of daylight hours, and falls near June 21st

summer solstice

400

Earth’s seasons are created because of the earth’s ___________.

Revolution and tilt

400

This part of the sun has temperatures of around 1,000,000 ºC, speeding up the sun’s particles so they are fast enough to escape the sun’s gravity.

corona 

400

An arch of dense plasma, anchored to the photosphere of the sun and extending into the corona is called a:

prominence

400

Non-renewable resources like coal, petroleum, or natural gas made from the remains of microorganisms and plants are called _______ _______

fossil fuels

400

This refers to the day of the year, in the northern hemisphere, when the number of sunlight hours equals the number of night hours near September 22nd

fall equinox

500

The location of the earth in the solar system that allows it to have liquid water available for use refers to Earth being in the __________ zone.

habitable

500

This part of the sun emits visible light and is the layer of the sun’s atmosphere we see from Earth.

photosphere

500

A continuum of light waves arranged from the highest to lowest frequency, including radio waves, visible light, and gamma rays is called ________ ________

electromagnetic spectrum

500

Large deposits of minerals or ores along a riverbank, carried there by erosion of sediment are called _______ deposits

placer

500

Lands that border aquatic areas and contain large amounts of plant life are known as _________ zones

riparian