Our Science Homework :)
Ms. Debbie, please look at all of our posts, because the subtitles are not always together.
Julia & Maika
terça-feira, 27 de março de 2012
Changes of state
When an object is heated, the motion of particles speed up(increases), so, they have more energy, if it is cooled, the motion of the particles slow down(decreases), making the particles have less energy.