So, we know what materials are, but can we make new materials? Or improve the materials we already have? In this episode of Crash Course Kids, Sabrina shows us how Material Scientists are working on these two things today.

In this episode of Crash Course Kids, Sabrina uses what she knows about properties of objects to solve the mystery of what she tripped over last night.

Ever heard of Oobleck? How about Non-Newtonian fluids? Well, today Sabrina is going to show us that things can sometimes behave like a solid, and sometimes like a liquid depending on how much force is applied to them. In this episode of Crash Course Kids, we'll talk about some weird stuff that's still... normal.

This Crash Course Kids video reviews how substances can be organized into groups according to their various properties.

Do you want to be an astronaut? Would you like to someday walk on the moon? Well, you better learn a little about gravity so you can escape from Earth and head into space. In this video, Sabrina chats with us about what it takes to get to the moon!

In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles. Also, she shows us how matter can change states from a solid to a liquid, a liquid to a gas, a gas to a solid, or a liquid to a solid.

This awesome science video explores what the Earth's resources are and how we use them.

This awesome science video leads students through the process they could use to engineer the solution to a problem. There is a challenge to design a robot to help them solve the problem in the video.

So, what's the difference between "weather" and "severe weather"? Is it just how hard the wind is blowing? Is it just thunder and lighting? Well, it can be some or all of those things. In this episode of Crash Course Kids, Sabrina talks to us about what makes Severe Weather and how it interacts with the Geosphere and Biosphere.

This awesome science video explores how engineers discover solutions to their problems by identifying the parts of the solution that fail (failure points) and using that information to design better solutions that won't fail.

This awesome science video explores how engineers make a plan to test all of the variables for the problem they are seeking a solution to.

This awesome science video outlines how, as part of the engineering process, engineers identify and isolate variables and then run trials to test their solutions.

So... what makes the wind? You might be surprised to learn that it has to do with two of Earth's spheres; The Hydrosphere and the Geosphere. In this episode of Crash Course Kids, Sabrina takes us to the beach to chat about how the wind comes into being and why that's pretty darn awesome!

So when water evaporates, what happens? Where does that water go? Does just vanish? Is it no more? Can matter ever just go away? Well, the answer is no, it can't. But it can LOOK like it does. In this episode of Crash Course Kids, Sabrina shows us how Conservation of Mass actually works with Sugar and Water.

So, what happens when there's not enough water? Well... not good things. Do we let homes have more water for showering and cooking? Or do we let farms have the water for growing crops? There aren't any easy solutions, but in this video Sabrina chats with us about how water scarcity can cause problems.

Of all of the water on Earth, most of it is saltwater and we need freshwater to live. There's not that much Freshwater for us (and other life) to get to. So how do different animals deal with different amounts of water where they live? In this episode of Crash Course Kids, Sabrina talks about the adorable Nerpa and how they deal with rough conditions to live in Freshwater!

Why is my weather app sometimes wrong? Well it has a lot to do with wind. Jet Streams, air cells, the shape and movement of the Earth... there are a lot of things that make weather a little unpredictable. In this episode of Crash Course Kids, Sabrina talks to us about how Ocean Currents actually work with Jet Streams to move weather around.

In this episode of Crash Course Kids, Sabrina gives us a real world example of how the Hydrosphere and Geosphere affect each other in the form of Weathering and Erosion. Think of Weathering as the force that makes a mess and Erosion as the force that cleans it up.

Weather and Climate... are they the same thing? No they are not. But they are both super important to how the geosphere is shaped. In this episode of Crash Course Kids, Sabrina chats with us about the differences between Weather and Climate.

We know that the Earth is divided into four spheres (The Hydrosphere, the Biosphere, the Geosphere, and the Atmosphere). But, how do these different sphere interact with each other? In this episode of Crash Course Kids, Sabrina chats with us about how two of the spheres do, in fact, work together.