Offers an explanation of solutions and mixtures and how they differ, as well as examples of mixtures and solutions.

Examines atoms and the states of matter, including what some scientists call the fourth state of matter, plasma.

Investigate the amazing world of physical science and find out for yourself about solids, liquids, and gases through experiments that you can do at home.

"Bearing Witness While Black: African Americans, Smartphones and the New Protest #Journalism tells the story of this century's most powerful Black social movement--through the eyes of 15 activists who documented it. At the height of the Black Lives Matter uprisings, African Americans filmed and tweeted evidence of fatal police encounters in dozens of US cities--using little more than the device in their pockets. Their urgent dispatches from the frontlines...

"El físico Fred Alan Wolf revela lo que él denomina la "nueva alquimia", una simbiosis de las ideas de los antiguos alqiumistas y de los nuevos científicos, con el fin de llegar a una mejor comprensión de la mente y la materia"--Container. Physicist Fred Alan Wolf reveals what he calls the new alchemy--a melding of the ideas of the old alchemists and the new scientists to reach a fuller understanding of mind and matter.