This sphere includes all living things on Earth.
Answer: What is the biosphere?
This sphere includes all of Earth's water.
Answer: What is the hydrosphere?
This is the layer of gases surrounding Earth.
Answer: What is the atmosphere?
Liquid water changing into water vapor is called this.
Answer: What is evaporation?
This is the lowest layer of the atmosphere, where we live and where most weather happens.
Answer: What is the troposphere?
This sphere includes rocks, soil, landforms, and Earth's solid interior.
Answer: What is the geosphere?
A tree growing in soil shows an interaction between these two spheres.
Answer: What are the biosphere and geosphere?
About this percentage of Earth's water is salt water rather than fresh water.
Answer: What is about 97%?
This gas makes up about 21% of Earth's atmosphere.
Answer: What is oxygen?
Water vapor cooling and changing into tiny liquid droplets is called this.
Answer: What is condensation?
Most meteors burn up in this atmospheric layer.
Answer: What is the mesosphere?
Rain soaking into soil is an interaction between these two Earth spheres.
Answer: What are the hydrosphere and geosphere?
Clouds belong primarily to this Earth sphere because they are made of water.
Answer: What is the hydrosphere?
Only about this percentage of Earth's water is fresh water.
Answer: What is about 3%?
This gas makes up about 78% of Earth's atmosphere.
Answer: What is nitrogen?
Rain, snow, sleet, and hail are all forms of this.
Answer: What is precipitation?
This layer contains the ozone layer.
Answer: What is the stratosphere?
Plants releasing water vapor through their leaves is called this.
Answer: What is transpiration?
A volcanic eruption sends ash and gases into the air. This is mainly an interaction between these two spheres.
Answer: What are the geosphere and atmosphere?
This sphere contains all of the frozen water on Earth.
Answer: What is the cryosphere?
There are this many layers to the atmosphere.
Water flowing over Earth's surface toward streams, rivers, lakes, or oceans is called this.
Answer: What is runoff?
This extremely thin, hot layer is where many satellites orbit and auroras can occur.
Answer: What is the thermosphere?
The Sun provides the energy that drives this continuous movement of water through Earth's systems.
Answer: What is the water cycle?
Water, rock, air, and a deer are present at the same location. Name the four major spheres represented.
Answer: What are the hydrosphere, geosphere, atmosphere, and biosphere?
Most of Earth's fresh water is stored here rather than in lakes and rivers.
Answer: What are glaciers and ice caps?
Nitrogen and oxygen make up most of Earth’s atmosphere. Name two other gases found in the atmosphere.
Answer: What are argon, carbon dioxide, methane, ozone.
Precipitation can fall in these forms.
Name the five major layers of the atmosphere in order from Earth upward.
Answer: What are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere?
Nitrogen + oxygen together make up approximately this percentage of Earth's atmosphere.
Answer: What is about 99%?