Here is a website that shows the periodic table of elements.  What is unique about it, is that for each element there is a linked video file describing it and showing it off.

A worksheet for your students to practice Punnett Squares, deciding between heterozygous and homozygous, and describing the genotype and the phenotype. The worksheet uses characters from Sponge Bob.

Have you ever wondered what those packets that say "don't eat" on them?  You know those packets found in shoe boxes, jerky packages, and leather products.  SciShow discusses the chemicals found within and how mankind is using them to absorb moisture out of the air.

Have you ever wondered why dogs pant?  This video would be great to show your students when you are talking about animal adaptations and how their unique characteristics help the organism.

Learn how gypsum and selenite crystals got formed in the Great Crystal Cave found in Mexico.  The crystals are some of the largest ever discovered.  The video discusses the formation, discovery, and a little bit about the history of the cave.

The ability to watch supercooled water turn instantly to ice is quite popular right now on the internet.  Here is a video that will discuss why disturbing supercooled water will make the water turn to a solid.  It discusses how the process is done and the chemistry behind water molecules.

Here is a very quick video that will quickly describe "What energy is."  It discusses chemical, nuclear, and dark energy.  

This health-related video discusses the importance and science of sleep.  It discusses why some don't sleep well and many of the external stimuli that keep us from sleeping.  Circadian Rythem, Melatonin, Insomnia, are all discussed in the video.

This educational video discusses why our bodies need water and answers how much we should drink every day.

Find out why the sky is blue in this SciShow video.  The video discusses the way light reflects colors and the fact that you really have to be human to see blue.