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Utah Education Network (UEN)
Utah Open Textbook: 7th Grade Science
Physical and biological factors affect everyday living. Scholars explore electromagnetic forces, motion, the rock cycle, and geological changes. They examine cells as the building blocks of life and how organisms reproduce using images...
The New York Times
Sequencing the Stages: Understanding H.I.V. Infection at the Molecular Level
How does HIV operate at the molecular level? Pupils discover the progression from a healthy immune cell to one infected with HIV, watch an animation of the HIV life cycle, and finally identify each of the stages with illustrations...