Where does the water on the road go after a rain day? And taking care of them can be very important!



Second Grade Next Generation Science

Standards

Dis

ciplinary Core Idea:

ESS2.C: The Roles of Water...

A waterfall that seems to just disappear into the ground sounds pretty unbelievable, but scientists are still bewildered by the mysteries of Devil's Kettle Falls.

Whales have a surprising and important job, says marine biologist Asha de Vos: these massive creatures are ecosystem engineers, keeping the oceans healthy and stable by ... well, by pooping, for a start. Learn from de Vos, a TED Fellow,...

Have you ever looked up at night and seen a streak of light flash across the sky? Some people call that a "shooting star," but it's not actually a star at all! Join Jessi and Squeaks to learn what shooting stars really are and how they...

Even though it may be cold outside, we can always think like engineers! Learn how to build a snowman -or a snowrat- with Jessi and Squeaks!

Torsten Reil talks about how the study of biology can help make natural-looking animated people -- by building a human from the inside out, with bones, muscles and a nervous system. He spoke at TED in 2003; see his work now in GTA4.

This week, John is teaching you about the near-future dystopia in Octavia Butler's Parable of the Sower. Parable of the Sower tells the story of Lauren Oya Olamina, and her life growing up in a post-climate change, semi-lawless America....

Silly String. It's awesome for pranks or party shenanigans, but this foam could also save your life someday.

Starting with the simple tale of an ant, philosopher Dan Dennett unleashes a devastating salvo of ideas, making a powerful case for the existence of memes -- concepts that are literally alive.

There's a birthday party at the fort, for one of history's most important scientists, Isaac Newton!

Hair can be so many different colors, but why do so many adults have gray hair?

Less than half of the rain that falls from a cloud makes it all the way to the ground – because a lot evaporates while falling or after landing in treetops.



Thanks to Georgia Southern University...

Just like the myth that plucking one gray hair will make three sprout, stress making your hair white isn't actually a thing. Or is it?!

Did you know that when you fall down, the earth falls up to meet you? Explore the counterintuitive equation that describes gravity.

In this video Paul Andersen explains how electric charge is quantized and how the smallest unit of charge is 1.6x10^-19 C, or the elementary charge. Robert Millikan discovered the elementary charge using the oil drop experiment. ...

From skydiving to recess, parachutes are used for fun and safety. So how do parachutes work to slow down people in the sky, or make a fun bubble to play in? Join Squeaks and Jessi as they show you how forces allow parachutes to do their...

In this video Paul Andersen explains how the photons emitted from or absorbed by an atom or nuclei is directly related to electrons moving between energy level. Absorption and emission are a direct result of the conservation of energy....

Glacier ice is weird. It's solid. Solid things aren't supposed to flow. But glacier ice flows like a liquid, and it does that without melting! How is this possible? I traveled to Mendenhall Glacier in Juneau, Alaska to find out.

If you lined up all the blood vessels in your body, they'd be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to the body's tissues. What effect does this pressure have on the walls...

In our continuing series on Earth's weirdest places, Hank describes the crazy place in Antarctica known as Blood Falls in all its scientifically strange majesty.

Leaps and bounds separate that which is ironic and that which many people simply say is ironic. Christopher Warner wants to set the record straight: Something is ironic if and only if it is the exact opposite of what you would expect.

This program describes the force of gravity and its importance to us. Gravitational forces hold objects on Earth, as well as keep the planets in orbit. This video correlates to the Next Generation Science Standard for Middle School...

You guys and your Vitamin D. You ask me on HCT Live, you ask me on comments, you ask me on Twitter. I'm amazed at the persistence of this question, as study after study seems to show that Vitamin D isn't doing most of us much good at...

Niagara Falls Was Drained in 1969… Here's What They Found