Volcanoes
Water
Atmosphere
Solar System
Weather
100

A place on the earth's surface that is directly above a column of rising magma.

What is a hot spot?

100

The force of attraction between different molecules.

What is adhesion?

100

Microscopic organisms that float in the atmosphere.

What are aeroplankton?

100

Centered on or around the earth.

What is geocentric?

100

The amount of water vapor in the air.

What is humidity?

200

A deep crack that forms between two tectonic plates as they separate.

What is a rift?

200

The change of a substance from a solid to a gas without passing through the liquid state. 

What is sublimation?

200
An atom with an electrical charge that has gained or lost one or more electrons.

What is an ion?

200

A telescope that uses a series of lenses to magnify objects.

What is a refracting telescope?

200
The sound that results from the rapid heating and expansion of air that accompanies lightning.

What is thunder?

300

A place where one tectonic plate is pushed under another.

What is a subduction zone?

300

The relationship between the input and the output of all water on earth.

What is a water budget?

300

A superheated gas composed of electrically charged particles.

What is plasma?

300

A spherical object that orbits the sun but is not large enough to move other objects from its orbit.

What is Adri, Kaylin, Bobby aka a dwarf planet?

300

The weather pattern an area has over a long period of time.

What is climate?

400

Lava that has a rough surface.

What is aa?

400

A long, narrow, U-shaped mass of  ice that takes shape as ice moves down a mountain and through a valley area.

What is a valley glacier?

400

The continuous flow of plasma from the sun.

What is solar wind?

400

A vast, moving interstellar cloud of gas and dust.

What is a nebula?

400

A period of time when ice collects in high latitudes and moves toward lower latitudes.

What is a ice age?

500

A body of magma that has hardened underground.

What is a pluton?

500

The difference in water height between high and low tide.

What is a tidal range?

500

A three-atom form of oxygen gas that protects the earth from UV radiation.

What is the ozone?

500

The first layer of the suns atmosphere.

What is the chromosphere?

500

A line that connects points of equal atmospheric pressure.

What is isobar?