What's MATTER? In this episode of Crash Course Kids, Sabrina talks about what matter is and the three states of matter: Solid, Liquid, and Gas. She also does a quick experiment that you can do at home to prove that air is matter.
What exactly can we tell about an unknown substance by it's properties. We already know that a substance is matter that’s made of one kind of atom or molecule, and that has specific properties and that some substances are elements, which means they can’t be broken down into other substances through physical changes or chemical reactions. We also know that we can group substances and elements by their properties. We know that metals have high reflectivity and magnetivity. What else do we know about metals?
This awesome video introduces the field of engineering and how it has and continues to impact our everyday lives. It addresses how we are able to travel from place, communicate, cook, build things, search the internet and much more because engineers ask themselves how and why things work. They design and build things to solve problems.
Engineers ask themselves three very important questions while they are working:
1. What is the problem that needs to be solved?
2. Who has the problem that needs to be solved?
3. Why is this problem important to solve?
Each type of engineer is outlined with examples of how and why their work is changing our daily lives.
So... do plants need dirt? The truth might shock you. In this episode of Crash Course kids, Sabrina talks about how plants get energy and how that energy is transported around them. Also, she talks about dirt.
In this episode of Crash Course Kids, Sabrina talks about how properties help us understand objects.