Didn't work the best Borax crystal shapes. Dissolve cup borax in jar filled with boiling water. Hang pipe cleaner shapes suspended from popsicle sticks. Let sit overnight. Can add food color to borax solution.
Earthquakes Lesson - This is part 5 of a 6 part hands-on unit study on Earth Science. Create a tsunami, build marshmallow structures that can withstand an earthquake, act out seismic waves, build and use a seismograph, and more!
As the name suggests, this site provides links to the best multiplication apps out there. These apps include everything from drill and practice to learning new techniques with fun games. Although some of the apps require a payment, many of them are free.
Among the projects that Andreas Haeuser has been focusing on are energy-harvesting printed wind turbines and printed solar stirling engines, which are the result of two years of development, multiple prototypes.