Cherokee lacrosse players from 1888 People who lived in North America played both active games and the kind where you can sit down. Their favorite active game was lacrosse. Or actually lacrosse [...]
This is a variation on a traditional Inuit game. Print out the outline of the seal flipper bones and cut on the lines to get each bone separate from the others. Make [...]
Need chalk? Buy chalk Chalk has calcium in it Take a piece of regular white chalk, like for writing on a blackboard. Make sure the chalk is calcium carbonate like [...]
Fish vertebrae Fish were the first animals to have vertebrae, about 510 million years ago. Vertebrae are tiny O-shaped bones that go around the fish's spinal cord and protect it [...]
Evolution of skeletons: Skeleton of a dinosaur Evolution of skeletons From frogs, there evolved reptiles like crocodiles and dinosaurs. Some of these reptiles lived mostly or entirely on land, so [...]
A fish skeleton Before there were bones One-celled animals don't have any support system that holds them in a certain shape. Plants do have a support system, but it's the [...]
Human hand bones The first fingers and toes evolved from earlier fish fins about 400 million years ago. During the Devonian period, the oceans were very shallow, and some fish [...]
Vertebrae project: check out fish and chicken vertebrae You can easily see vertebrae for yourself if you buy a whole trout (with the bones in) at the grocery store and [...]
A fish skeleton To check out fish bones, buy a whole fish from a big grocery store with a fish department. You can get them with the head and tail [...]
