High School Earth Science Vocabulary

Understanding High School Earth Science Vocabulary

This vocabulary set covers Earth as a connected system. High school Earth science is not a group of separate facts about rocks, weather, oceans, and climate. Matter and energy move between these parts all the time.

Sunlight enters the atmosphere, surfaces reflect some energy because of albedo, and land and water absorb the rest. Earth releases energy as infrared radiation. Greenhouse gases, including carbon dioxide, affect how much of that energy remains in the lower atmosphere.

Radiative forcing helps scientists describe a change in this energy balance. These words matter because they help explain both ordinary temperatures and long-term climate change.

The atmosphere and ocean work together to move heat around the planet. Wind belts form from uneven heating between the equator and poles. Earth’s rotation changes the paths of moving air and water through the Coriolis effect.

This helps create large ocean gyres. Ocean currents carry warm or cool water to new places, shaping coastal climates. Upwelling brings deeper water toward the surface and can support rich ocean food webs.

Do not memorize these as isolated labels. Trace the cause and effect. Uneven heating drives winds.

Winds push surface water. Rotation bends motion. Moving water transports heat and nutrients.

Earth’s solid layers show another kind of cycle. The lithosphere is broken into tectonic plates that move slowly over the softer asthenosphere. At divergent boundaries, plates pull apart.

At transform boundaries, they slide past each other. At subduction zones, one plate moves beneath another. These movements release energy as seismic waves and help create volcanoes, mountains, and ocean trenches.

Rocks record the results over long periods. Igneous rock forms from cooled melted rock. Weathering breaks exposed material into smaller pieces.

Deposition collects that material, often leading to sedimentary rock. Heat and pressure can change existing rock into metamorphic rock. A rock can move through more than one part of this cycle.

Weather vocabulary explains events students can observe outside. Evaporation adds water vapor to air. As air rises, it expands and cools through adiabatic cooling.

When it reaches the dew point, water can condense onto condensation nuclei. This can build clouds. Strong updrafts and downdrafts inside a cumulonimbus cloud help produce heavy rain, hail, and thunderstorms.

Charge separation creates an electric field. A stepped leader and return stroke are stages of lightning. Study these terms by drawing process chains and labeling arrows with what changes.

Use maps for winds, currents, and plate boundaries. Use a weather observation to connect clouds, temperature, moisture, and precipitation. The goal is to explain a real Earth event in order, using accurate vocabulary as evidence.