What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

How can you tell how old a tree is? Look no further! This worksheet gives a basic overview of tree rings for your little scientist.

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

Children are introduced to the concept of the speed of light in this illustrated worksheet.