Revising explores the important elements of the revising step of the writing process.

Environmental Changes and Animals compares the differences of animals that die or relocate to animals that survive and reproduce when their environment changes.

Technology and How People Live and Work explains how the way people live and work has changed history in terms of technology.

In this video, you will learn how to revise your realistic fiction story to improve your writing. We will discuss how to add, change, or remove parts of your story to make it even better!

In this video, we will be discussing the main changes that have been made to the ISO 27001 standard for information security management systems in 2022. ISO 27001 is a globally recognized standard that helps organizations manage and...

In this video, we will be discussing the changes that have been made to Annex A 27001. Annex A 27001 is a set of controls that organizations can implement to ensure the security of their information. Recently, there have been some...

The video is a lecture presentation on the process of preparing copper sulfate crystals. The presenter explains the reaction between copper oxide and sulfuric acid that produces copper sulfate and water, and the challenges of obtaining a...

The video explains how to calculate energy changes in chemical reactions by considering the energy required to break bonds and the energy released when bonds are formed. The video also introduces the concept of bond energy, which is the...

The video gives a brief overview of oxidation and reduction and then focuses on reactions at the cathode and anode in an electrolytic cell. The concept of half equations is introduced and demonstrated through examples, with a focus on...

The video explains the process of electrolysis of molten iron compounds. It discusses what electrolysis is and how it works, with a focus on the movement and reaction of ions at each electrode. The video also explains the concept of an...

This video is an educational tutorial on the pH scale. The presenter goes over the difference between strong acids and weak acids and explains how they dissociate in an aqueous solution. They also cover acid concentration, which is...

In this video, the presenter discusses titration calculations, which are useful in determining the concentration of a solution by using a solution of known strength. The video explains the thought process and equations involved in...

This video explains the three main types of reactions that metals undergo: reactions with oxygen, reactions with acids, and reactions with water. The video provides word equations and examples of each type of reaction and notes any...

The video is a tutorial on electrolysis of aqueous solutions. The speaker introduces the basic rules for electrolysis of aqueous solutions and how to predict the products using those rules. The examples are given for different...

This is a lecture presentation on the electrolysis of aqueous copper sulfate. The presenter goes through the theory of the electrolysis with metal electrodes and develops a hypothesis about what happens when copper sulfate solution is...

This is a science lesson on strong and weak acids. The presenter explains the differences between strong and weak acids, their ionization levels, and their effect on acid concentration. The video also covers the pH scale and how it...

This is a lecture video that discusses the impact of social changes on businesses, focusing particularly on how demographic changes can affect a business's performance. The lecturer examines demographic factors such as population...

The video is a lecture presentation on the electrolysis of aqueous copper sulfates. The presenter discusses an experiment to test the hypothesis about the relationship between the current through the electrolyte and the mass of copper...

This is a physics lesson that explains the relationship between force, momentum, and acceleration. The video explains how force acting on an object causes a change in momentum, and how acceleration is linked to force. The equation, F =...

The video is a lecture presentation about the reactivity series, covering topics such as how to define and order reactivity, and providing examples of reactions between different metals and their reactions with water and acids. The...

This video is a lecture presentation on the topic of neutralizing hydrochloric acid. The presenter explains the chemical reactions that occur and demonstrates an experiment to determine the mass of calcium oxide required to neutralize a...

In this video, the presenter explains how to make soluble salts. They begin by discussing state symbols and explaining how they can indicate whether a substance is soluble or insoluble. Then, they outline the steps for producing a salt...

This is a video discussing the reactions of acids and metals, and deriving the associated ionic equations. The video covers how different acids produce different salts when reacting with metals, and how to predict the resulting salt....

The video is a lecture presentation on the topic of neutralization and salt production. The presenter discusses the reactions between acids and bases, and demonstrates examples of reactions between different types of acids and bases,...