Youtube is an awesome educational resource. We often use it when we are busy with science or technology lessons. A lot of our science lessons start off with a Youtube video before I actually start teaching. This has worked well for us over the years.

Here are the channels we use frequently:

#1 ~ DIY Windmills: Tutorial
#2 ~ K5Learning Review
#3 ~ Time4Learning Review
#4 ~ How is Technology used in our homeschool?
#5 ~ Toddlers and Technology