So, rocks are hard. But the scale we use to rank them, the Mohs scale, is only really good at quantifying that for one kind of hardness, and topaz is a perfect stone to talk about to explain that. And you can check it out in our SciShow...

You’ve probably had some. White lines or spots that appear and grow out with your nails. Why does this happen? There are a few reasons, ranging from bumping your nail to poisoning. Check out his Quick Question to see what might apply to...

Did you know you have useful tools right at your fingertips? That's right: your fingernails! Jessi and Squeaks learn why fingernails are so important!

Snakes are super cool and super helpful, but people believe a lot of things about them that just aren't true. Join Jessi and Squeaks to learn what's true and what's false about these radical reptiles!

The full moon might seem bigger on the horizon than when it's higher up, but when does it actually take up more space in the sky?

Clipping your nails will keep them looking trim and neat, and it's certainly more sanitary than biting them.

Flower children of the world -- unite and make your own daisy chains to wear as crowns, necklaces, or bracelets.

In this video students will make observations to identify materials based on their properties. Students will set up their own experiment in which they will identify the properties of ten types of matter. The video correlates to the Next...

Learn about nail anatomy with this fun educational music video nails . Brought to you by KLT.

Learn how to throw a curveball and the most common curveball grips in this video - knuckle curve, index finger pointed, etc.

The required steps in hand and fingernail care according to the CNA skills test.

This video provides an informative overview of the human fingernail, discussing its composition, evolutionary significance, and practical functions. It emphasizes the importance of maintaining clean and groomed nails to prevent the...

Cleavage and hardness are two macroscopic characteristics that geologists use to identify and classify minerals. How are these characteristics measured? What do they tell us about the properties of a mineral?



Macroscopic...

Upon viewing the Minerals video series, students will be able to do the following: Define minerals as naturally occurring solids that have a definite chemical makeup and crystal shape. Explain that a crystal is made of particles that...