Crash Course
Plant Cells: Crash Course Biology
Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to & different from animal cells.
Bozeman Science
The Origin of Life - Scientific Evidence
Paul Andersen discusses scientific evidence of the origin of life on our planet. He begins with a brief discussion of the age of the earth and ends with the future of humanity. He includes geologic, chemical and molecular data.
Bozeman Science
Energy Transfer
In this video Paul Andersen explains how energy can be transferred from one system to another. In a closed system the energy can be transferred as either work or heat. Thermal energy transfer is know as energy transfer through heat....
Bozeman Science
Conservation of Energy
In this video Paul Andersen explains how energy can neither be created nor destroyed but may be transferred. Energy comes in many forms (including chemical, mechanical, light, electrical, and thermal). In AP Chemistry students must be...
Bozeman Science
Quantum Mechanical Model
In this video Paul Andersen explains how the quantum mechanical model of the atom refined the shell model. Uncertainty of the position of the electron as well as spin forces chemists to create an improved model. In this model the...
Bozeman Science
Elements and Molecules
In this video Paul Andersen explains how elements and molecules are made of atoms. In a pure sample of a pure substance the average mass remains the same. If more than one atom is found in a molecule the ration of average masses remains...
Curated Video
Using ROMAN NUMERALS to name Ionic Compounds w/ a Transition Metal in Chemistry!
Transition metals are elements in the d orbital. The reason these are unique is that they do not have 1 set charge they become when they become an ion like elements in the s and p orbital. Elements in the d orbital, or our transition...
Curated Video
Unveiling the SECRETS of Atomic Structure!
In this video, students will learn about atomic theory, atomic structure and how the atom is put together. This will include learning about the different subatomic particles, protons, neutrons and electrons, that make up the atom! This...
Curated Video
Determining the Number of protons, neutrons and electrons in an ATOM
In this video, we're going to learn about the number of p, n and e in an atom. We'll explore the atomic structure of different elements, and see how the number of protons, neutrons and electrons affects the properties of those elements....
Curated Video
Protons, Neutrons and Electrons Explained - what's the difference?
In this video, we'll explore the differences between the proton, neutron, and electron. We'll learn about their characteristics, and how they interact with matter. This video is perfect for anyone who wants to learn more about subatomic...
Curated Video
Molecules, compounds and types of chemical bonds
What is the difference between a molecule and a compound? What are the main types of chemical bonds? In this video, we will be answering those questions and more.
Curated Video
Writing Formulas for Covalent Compounds
A covalent compound is formed when 2 nonmetals bond together. When we have a covalent compound we have to use a specific set of naming rules. The first rules is that the first element keeps its name. The second rule is that the second...
Curated Video
Balancing Chemical Reactions – 4 EASY Steps
In this video, we're going to show you how to balance chemical equations – it's going to be easy! We'll start with the basics, and then move on to more complex problems. By the end of this video, you'll be able to balance chemical...
Curated Video
Chemistry - Electron Configuration for Ions
Electron Configurations are essential to chemistry and they help us better understand and explain the position/location of electrons. Writing electron configurations can be daunting at first but once you see the pattern, you will be able...
Curated Video
Naming Covalent Compounds the EASY way | How to pass Chemistry
This videos will cover how to name covalent compounds. It is important to remember that we have to use prefixes when we name covalent compounds. Covalent bonds, or compounds, form between 2 nonmetals, or 2 anions. In a covalent bond the...
Curated Video
Balancing Acid/Base Neutralization Equations - 1 EASY TRICK - sodium hydroxide and hydrochloric acid
How to make a balanced chemical equation using sodium hydroxide and hydrochloric acid! In this video, we're going to show you how to quickly and easily balance acid/base chemical equations. This is a skillset that is essential for...
Curated Video
How to find the Molecular Formula of a Chemical Compound
The molecular formula is the actual formula of a compound and can be found by comparing the mass of the molecular formula to the mass of the empirical formula to figure out how much bigger the molecular formula is compared to the...
Curated Video
Chemistry - Molecular and Empirical Formulas Explained - What's the difference?
The molecular formula of a compounds gives you the actual formula while the empirical formula gives you a simplified version of the molecular formula. Both formulas are important in chemistry and they both gives us valuable information....
Curated Video
Writing Ionic Formulas
Writing formulas for ionic compounds is all about canceling out the charges! An ionic compound is formed between a cation and an anion, or a positive and negative charge so the goal is to always get the charges to add up to zero! In this...
Curated Video
How do I know if a chemical reaction has occurred?!?
When trying to determine or prove if a chemical reaction has occurred, there are 5 indicators that scientist look for! The 5 indicators are the formation of a precipitate, the formation of a gas, the formation of water, a color change or...
Curated Video
Most common types of hydrolysis - Study with me
In acid and base chemistry, we learn that there are 3 main types of hydrolysis: salt, acid and base. In this video, I will show you a fun and crafty way to spice up your organic chemistry notes on this topic.
Curated Video
What the heck is an ELEMENT in chemistry?
In chemistry, we usually talk about atoms and molecules. When we introduce the term 'element', things get a little confusing. In this video, we will cover what an element is in chemistry and give you some examples.
Curated Video
How a Mind-Blowing World of Ice Gets Made
It’s a mile long and 150 feet high, and covered in the most spectacular ice falls anyone has ever seen. And it’s all human made. The Ouray Ice Park is the world’s premiere location for ice climbing and attracts visitors from around the...
Curated Video
Valence Electrons & Lewis Dot Diagrams - what are they and how do I draw them?
Valence electrons are the electrons in the outermost energy level of an atom. They are important because they are involved in the chemical bonding of our elements which helps determine the reactivity of elements. In order to be stable,...