The nicest way is to use a Google account [free] , and upload your photos to Google+. If you use the standard filesize, all pix are free to store. Then use the Google+ Slideshow Feature, as you use the Google Cast Extension casting function.
Explain that water is made up of tiny particles, called molecules, which are too small to see. These particles are always moving, even in very cold water. Since water molecules move, the molecules help mix the food coloring. However, the color mixed faster in the hot water than it did in the cold.
Introduction: Water movement in soils is quite simple and easy to understand in some ways and quite complex and difficult to grasp in others. An object that is free to move tends to move spontaneously from a state of higher potential energy to one of lower potential energy. So it is with water.