A plastic bag, a dirty pizza box, plastic utensils, paper napkins, and a soda can—a single takeout meal can feel like a game of recycling trivia. Which items can be recycled? What kinds of plastic go ...

The skeleton allows movement, provides support and protection for vital organs and makes blood cells. Skeletal muscles move the bones in the body. The skeletal system is made from bones and joints.

Enslaved young woman: We were mothers, fathers, husbands, wives, sons, daughters, farmers, priests, merchants, musicians. And for hundreds of years, we were sold into slavery as part of a war, or ...