Seasons and daylight
Tides & Gravity
Earth's Spheres
Earth's layers
Rock Cycle
100

This movement of Earth around the sun helps cause the seasons.

πŸ‘‰ What is Earth’s revolution?

100

This object has the strongest effect on Earth’s tides.
 

πŸ‘‰ What is the moon?

100

This Earth sphere includes all living things.
 

πŸ‘‰ What is the biosphere?

100

This is the thinnest layer of Earth.
 

πŸ‘‰ What is the crust?

100

This type of rock forms when magma or lava cools and hardens.
 

πŸ‘‰ What is igneous rock?

200

This causes the seasons and different amounts of daylight during the year

πŸ‘‰ What is the tilt of Earth’s axis?

200

This type of tide happens when the sun and moon are aligned with Earth.
 

πŸ‘‰ What is a spring tide?

200

This sphere includes oceans, rivers, lakes, glaciers, and water vapor.
 

πŸ‘‰ What is the hydrosphere?

200

This is the thickest layer of Earth.
 

πŸ‘‰ What is the mantle?

200

This process breaks rock into smaller pieces.
 

πŸ‘‰ What is weathering?

300

A scientist in Buenos Aires sees less than 10 hours of daylight. This date is most likely when they began their research.

June 21st 

300

This tide has the smallest difference between high and low tide.
 

πŸ‘‰ What is a neap tide?

300

Rocks and soil belong to this sphere.
 

πŸ‘‰ What is the geosphere?

300

This Earth layer is made of liquid metal.
 

πŸ‘‰ What is the outer core?

300

This type of rock forms from sediment that is compacted and cemented.
 

πŸ‘‰ What is sedimentary rock?

400

In fall, the Northern Hemisphere points this direction relative to the sun, causing days to get shorter.
 

πŸ‘‰ What is away from the sun?

400

When there are two high tides and two low tides per day, the time between a high tide and the next low tide is about this long.
 

πŸ‘‰ What is 6 hours?

400

This sphere is made mostly of gases like nitrogen and oxygen.
 

πŸ‘‰ What is the atmosphere?

400

This layer is the hottest but remains solid due to extreme pressure.
 

πŸ‘‰ What is the inner core?

400

Heat and pressure change rocks into this type of rock.
 

πŸ‘‰ What is metamorphic rock?

500

This event in March causes day and night to be about equal and mornings to start getting brighter.
 

πŸ‘‰ What is the spring equinox (March 21)?

500

If the moon took twice as long to orbit Earth, this would still happen twice each day, but spring and neap tides would happen less often.
 

πŸ‘‰ What are daily tides?

500

At Mt. Fuji, the volcano, trees, and clouds belong to these spheres in order.
 

πŸ‘‰ What are geosphere, biosphere, and atmosphere?

500

These are the layers of Earth in order from the outside to the center.

πŸ‘‰ What are crust, mantle, outer core, inner core?

500

These processes change metamorphic rock into igneous rock, then into sedimentary rock.
 

πŸ‘‰ What are melting and cooling, then weathering and erosion?

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