Bozeman Science
Enzymes
Paul Andersen explains how enzymes are used to break down substrates. The correct shape of the active site allows a key/lock fit between the enzyme and the substrate. The enzyme catalase is used to break down hydrogen peroxide. The...
Bozeman Science
Limiting Reactants and Percent Yield
Mr. Andersen explains the concept of a limiting reactant (or a limiting reagent) in a chemical reaction. He also shows you how to calculate the limiting reactant and the percent yield in a chemical reaction.
Bozeman Science
The Importance of Oxygen
In this video Paul Andersen explains the importance of oxygen in accepting electrons. He begins with a brief description of combustion. He then explains the role of oxygen in aerobic cellular respiration.
Crash Course
Calorimetry: Crash Course Chemistry
Today's episode dives into the HOW of enthalpy. How we calculate it, and how we determine it experimentally...even if our determinations here at Crash Course Chemistry are somewhat shoddy.
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Table of Contents
Hess' Law 2:30
Calorimeter...
Bozeman Science
PS1B - Chemical Reactions
In this video Paul Andersen explains how chemical reactions progress as bonds are broken and reformed reformed. He explains the difference between changes in state and changes in molecules. He discussed collision theory and explains why...
Bozeman Science
Physical and Chemical Changes
Mr. Andersen explains the difference between physical and chemical changes. A brief discussion of chemical reactions and equations is also included.
Bozeman Science
The Mole
In this video Paul Andersen defines and explains the importance of the mole. The mole is simply a number (like a dozen) used to express the massive number of atoms in matter. It serves as a bridge between the mass of a compound and the...
SciShow Kids
Blow Up A Balloon With Science! #sciencegoals
Can you believe that you can blow up a balloon without actually blowing your own air into it!? Follow along with this super neat experiment and find out how!
Bozeman Science
Photosynthesis
Paul Andersen explains the process of photosynthesis by which plants and algae can convert carbon dioxide into useable sugar. He begins with a brief description of the chloroplast. He describes the major pigments in a plant (like...
Bozeman Science
The Rate-Limiting Step
In this video Paul Andersen explains why the slowest elementary step in a chemical reaction is the rate-limiting step. This step can be used to determine the overall rate law of the chemical reaction.
Curated Video
History of Red Velvet Cake
Howcast - Learn the history of red velvet cake from professional cake decorator Amanda Oakleaf in this Howcast video.
Curated Video
How to Fill a Balloon with Gas using Baking Soda & Vinegar
Howcast - Learn how to fill a balloon with gas using baking soda and vinegar with the instructions in this Howcast science project video.
Curated Video
How to Explode a Plastic Bag using Baking Soda & Vinegar
Howcast - Learn how to explode a plastic bag using baking soda and vinegar with the instructions in this Howcast science project video.
Curated Video
Interconnected Ecosystems
“Interconnected Ecosystems” explores interdependent relationships between living things in various biomes.
Curated Video
Equilibrium in thermodynamics
Explores the relationship between equilibrium and thermodynamic concepts like Gibbs free energy
Curated Video
Reaction Quotient - Predicting Reaction
Describes the reaction quotient (Q) and its role in predicting whether a reaction will proceed forward or reverse
Curated Video
Reversible Reactions
Highlights reactions that can proceed in both forward and reverse directions, reaching a state of balance.
Curated Video
Chemical Reactions - Irreversible & Precipitation Reactions
Explains irreversible reactions that proceed to completion and precipitation reactions where insoluble solids form from solutions
Curated Video
Stored Energy
“Stored Energy” explains how potential energy is stored, how objects have potential energy, and how potential energy is changed to kinetic energy.
Curated Video
The Role of Chemical Reactions in Light, Fire, and Emotions
This video explores how chemical reactions create light and power various processes, from lighting up a room to propelling a rocket into space. It also delves into the fascinating ways chemical reactions occur within our bodies,...
Curated Video
Understanding Batteries: How Chemical Reactions Generate Electrical Energy
In this video, we explore how batteries work by converting chemical energy into electrical energy. The three main components of a battery, the anode, cathode, and electrolyte, play vital roles in this energy transformation. By...
Curated Video
Limiting vs Excess Reactants - what's the difference?
Do you know the difference between a limiting and excess reactant and how to identify them in a chemical reaction? These are important skills to mastering chemistry! In this video, we will show you the difference between limiting and...