What sphere of Earth includes the air we breathe.
Atmosphere
This is the coldest place on Earth, where temperatures can drop as low as -129°F (-89°C).
Antarctica
This sphere of Earth includes oceans, lakes, rivers, and all other forms of water.
Hydrosphere
This fast-moving danger on mountains can reach speeds of 80 miles (129 km) per hour and is a major hazard to skiers and climbers.
Avalanche
This popular winter holiday is celebrated on December 25th.
Christmas
This sphere refers to the solid ground of Earth, including rocks, mountains, and soil.
Geosphere
This desert receives less precipitation than Antarctica each year.
Sahara Desert
Most of the air on Earth is found in this layer of the atmosphere.
Troposphere
An avalanche starts when this happens to a slab of snow on a mountainside.
It slides off the layer beneath it
This is the name of the green creature who tried to steal Christmas.
The Grinch
This sphere is made up of all living things, including plants and animals.
Biosphere
These flightless birds are the only animals that venture inland in Antarctica.
Penguins
This layer of the atmosphere is the coldest and is located above the stratosphere.
Mesophere
Contrary to popular belief, this action is not strong enough to trigger an avalanche.
Shouting
People decorate these with ornaments and lights during Christmas.
Christmas Tree
In the example of a forest meadow, this element of the biosphere is represented by a deer.
A living thing
In 1911, explorers reached this icy landmark for the first time after a 99-day journey by dog sled.
South pole
All weather events, like rain, snow, and storms, occur in this atmospheric layer.
Troposphere
To prevent dangerous natural avalanches, ski patrols and rescue teams use these to trigger controlled avalanches.
Explosives
This holiday is celebrated on October 31st with costumes and candy.
Halloween
Rivers are part of this sphere, not the geosphere
Hydrosphere
To stay warm in Antarctica, this many layers are recommended, including a foundation, insulating, and windproof layer.
Three layers
This substance makes up the majority of the hydrosphere and is essential for life.
Water
This radio device can help rescuers locate you if you are buried in an avalanche.
Avalanche beacon
This special day in November is known for turkey dinners and giving thanks.
Thanksgiving