Science TEKS 1.7 B: Identify and describe a variety of natural sources of water, including streams, lakes, and oceans.Use this short PowerPoint file to compare and contrast streams, lakes, and oceans.This file works best with an account to Discovery Education, in order to access their streaming videos. However, any video clips showcasing streams, lakes, and oceans will work.If no videos are available, teachers can use the PowerPoint alone to briefly introduce and compare the three bodies of wat