Model NGSS Lessons: 4th - 5th Grade

Document Type

Teacher Resource

Grade Level

Grade Level: 4th Grade

Publication Date


Background Information

In January of 1952, the Sierra Nevada mountains of California were stuck by a record-breaking blizzard. Railroad tracks through the mountain passes were being blocked by avalanches and snowdrifts. The tracks were generally kept clear by powerful rotary snowplows, but this blizzard was like nothing the Southern Pacific Railroad had ever seen before.

Performance Expectations

4-PS3-4 Energy

Apply scientific ideas to design, test, and refine a device that converts energy from one form to another.



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