Explore the concept of density within states of matter—gases, liquids, and solids—through a group experiment in which young scientists test objects' texture, color, weight, size, and ability to sink or float.    

Choosing sides is no easy matter, and this was certainly true for the citizens of Baltimore in the beginning stages of the Civil War. Using video, group analysis of several primary sources, and discussion, this detailed and thorough...

Determining whether or not something is living can be more difficult than it seems. Put your young scientists to work defining their own criteria to identify life, then work with three samples to see if they are alive or...