Scientists are using video cameras and glorified fitbits to decipher the body language of trees. Geology professor Dom Ciruzzi says the way trees sway tells us a lot about tree overall health. Also: The location of trees affects home values. A study by Kevin Boyle and the U.S. Forest Service reveals that adding trees can boost home prices but there is a sweet spot where too much canopy can reduce value.

Later in the show: Each year David Goodman captivates hundreds of children and families in Appalachia with a thrilling live science show, complete with flames, explosions and interactive experiments and a particular crowd favorite called Puking Pumpkins.