This unit begins with corn starch. Mixed cold, it forms a coarse suspension that clears by filtering or settling. When boiled it forms both a cloudy colloidal suspension and clear true solution. Concepts and vocabulary learned here are then applied to a series of tasks that clean muddy water. Alum coagulates the clay, chlorination bleaches all traces of food coloring, but only distillation makes it pure. Students then use rock salt, baking soda, Epsom salt and copper sulfate to study about cryst
List Price: $ 13.00
Price:
George Washington Carver: Teacher, Scientist, and Inventor (Biographies (Picture Window Books)) Born into slavery, George Washington Carver fought adversity to educate himself. Find out how this teacher not only improved the way people farmed, but introduced the world to more than 300 uses for the peanut. List Price: $ 25.99 Price: Related Science Book Products
The Botany Coloring Book An exciting new approach to learning about botany. Teaches the structure and function of plants and surveys the entire plant kingdom. List Price: $ 21.99 Price: Science (DK Eyewitness Books) The most trusted nonfiction series on the market, Eyewitness Books provide an in-depth, comprehensive look at their subjects with a unique [...]
The Path of Daggers (The Wheel of Time, Book ISBN13: 9780812550290 Condition: New Notes: BRAND NEW FROM PUBLISHER! 100% Satisfaction Guarantee. Tracking provided on most orders. Buy with Confidence! Millions of books sold! The Wheel of Time turns, and Ages come and pass. What was, what will be, and what is, may yet fall under [...]
The Science of Good and Evil: Why People Cheat, Gossip, Care, Share, and Follow the Golden Rule From bestselling author Michael Shermer, an investigation of the evolution of morality that is “a paragon of popularized science and philosophy” The Sun (Baltimore)A century and a half after Darwin first proposed an “evolutionary ethics,” science has begun [...]
The Way Science Works The perfect introduction to how science explains the world around us! Eye-opening experiments and exceptional photography bring science to life. Discover science in action from the principles that explain everyday occurrences to the theories behind the technology in today’s fast-moving world. Test the theories in more than 100 hands-on projects. Next-generation [...]