This is Emmett Chappelle. He was a famous scientist. He also invented things. He won awards for his inventions.
Photo Credit: NASA Image Collection/Alamy Stock Photo
In the Know
Spring Changes
March 19 is the first day of spring. Many changes … read more
In the Know
Chemistry Is All Around
What is chemistry? Is it chemicals? Is it a lab? … read more
In the Know
Magnified
These students are using a tool. It is called a magnifying … read more