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Unit 3: Earth systems and resources

500 possible mastery points

About this unit

This unit explores Earth systems and resources that support life. Learn about plate tectonics, soil formation and erosion, soil composition and properties, earth's atmosphere, global wind patterns, watersheds, solar radiation and Earth's seasons, Earth's geography and climate, and El Nino and La Nina.

You thought soil was simple? Don't be silty!
The winds prevail and rainfall follows.
Level up on the above skills and collect up to 240 Mastery points
Seasons: it's the angle, not the distance.
The long-term pattern of weather is climate.


Level up on the above skills and collect up to 160 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 500 Mastery points!