MinuteEarth
What is Skin For?
Smooth or scaly, skin is sensational! Besides keeping us from being gooey, what does it do? Pupils embark on an integumentary investigation with a short video about skin. Topics include the special features of skin cells, how skin...
TED-Ed
Cambridge Ideas - How Many Lightbulbs?
Humans have become addicted to fossil fuels. From pumping oil into our cars, to burning natural gas to heat our water, or using coal to create electricity that lights our homes, we are constantly relying on these nonrenewable resources....
Khan Academy
Khan Academy: Punctuating a List
Learn how to use commas to punctuate a written list of people, things, actions, or events.
Khan Academy
Khan Academy: Introduction to the Semicolon
Paige introduces a piece of punctuation called the semicolon; this punctuation can link closely related independent clauses together in a sentence.