I love scholastic's studyjams! They have short math and science videos about many topics and the kids love them. I usually use a short clip for an activating strategy.
Next, I love simulations! PhET offers FREE fun, researched based online simulations. http://phet.colorado.edu/
My husband loves BBC for the show "Top Gear" but I love BBC for all of the free education resources. They have games, lesson ideas, video clips, and more! http://www.bbc.co.uk/bitesize/ks2/
PBS has great short videos on cool science jobs! They also have science experiments and science fair help. The kids love the games. http://pbskids.org/dragonflytv/
Check out these sites...they are full of science fun and information!
My TPT store:
I am currently working on science units (force and motion with Mercy, prediction, observation, and inference with Epossumondas) to go with several of my favorite books:
If you have never read a Picture Perfect Science book, I highly suggest it! A great resource for teachers!
Also, check out my latest post on "Critters in the Classroom"!