Water and Its Properties
This lesson covers the composition of water, including its chemical formula H2O. It explains the physical properties of water, such as its states (solid, liquid, gas), boiling and melting points, and its ability to dissolve various substances. The lesson also discusses the importance of water in liv
- 00:10 “Good day, everyone! My name is Mr. Ife and I'm your basic science instructor. Our lesson today is "Says, Water, and Rustam". A quick round through the objectives. At the end of the class, students should be able to expla...”
- 01:01 “Students should be able to state the properties, the types, and the uses of water. Water, we all know that water is very important, and you are so familiar with water. Water is an organic, which is not derived from livin...”
- 13:51 “When you use your hand to touch the ion, the roast flick is that particle that comes out. So, it falls off the ion and exposes the new ion. Which can then also begin to roast. So, the ion has stages. So, once the first p...”
Changes of Matter and Atomic Structure
The lesson covers the differences between physical and chemical changes in matter. It explains the concepts of atoms and molecules, their arrangements, and introduces atomic number, mass number, and isotopes. The lesson also includes calculations of relative atomic masses.
- 00:00 “Good day everyone, my name is Adekunle, I will teach you chemistry. The topic we have now is particularly nature of matter, follow me as we roll. The first is changes of matter, where we have physical change and chemical...”
- 01:39 “very well, you discover that all these changes are not easily reversed. The moment they are formed, you can actually get them back. Also, reaction of matters and trials carbonate for, which dilutes acids, reaction of alk...”
- 00:45 “is an example of a physical change. Also, we have change of states, melting, nucleation, solidification, anything that you do at home that is so easy to do. Those are examples of physical change. We also have magnetizati...”
Fundamental and Derived Quantities
This lesson covers the definitions of fundamental and derived quantities in physics. It explains how fundamental quantities serve as the base for deriving other quantities and the importance of measurement in physical science.
- 00:45 “of the first topics in the syllabus "Physis". When we talk about "Physis", what do we mean by "Physis"? We talk about the story of natural phenomena, which has to be with an event or fact that is hard to explain sometime...”
- 00:00 “Hello, my name is Tijani Musa Alad-Bukho, I'm your Physiist teacher. The topic before us today is fundamental and derived quantities. At the end of the lesson, students should be able to differentiate between fundamental...”
- 01:34 “means of experiments conducted. So measurements, which is the major, which is the core of today's topic, is an integral part of experiments. We are the magnitude and the relationship among different physical quantities a...”
Definition and Classification of Chemicals
This lesson defines chemicals and explains their various forms, including solids, liquids, and gases. It also classifies chemicals their hazardous nature and discusses safety measures when using them.
- 30:09 “watching. My name is Uche Ugo. Till the next class.”
- 05:42 “The diagram on the screen is a silicon compound. You can see it is dark gray. This is silicon. It is an element. Now, forms of an element. Elements come in different forms but they all have the same type of atoms. Now, d...”
- 25:21 “Understanding the type of chemical which you are using helps you to prepare your hand glove, your head, your warmer, whatever you need to deal with this particular chemical, especially if it is a hazardous chemical. Also...”
Properties of Oxygen and Hydrogen
This lesson covers the properties, preparation, and tests of oxygen and hydrogen gases. It explains the role of these gases in the environment and their reactions with other elements. The lesson also includes information on the physical states of oxygen.
- 00:46 “Students will be able to write the properties of oxygen and hydrogen. And also, the test of oxygen and hydrogen. Students should be able to use oxygen and hydrogen and also the preparation of the gases. Oxygen is a gas a...”
- 18:02 “In that way, gases can be produced in the school laboratory. The fourth way to produce gas in the school laboratory is when it softens on the ghost combustion in air. Take for instance, you use a paper, you light it up w...”
- 02:23 “Oxygen forms compounds by reacting with practically any other element. So oxygen can be had with hydrogen and it is going to give you water. So oxygen can react with any element. So oxygen in its normal state from the pi...”
Careers and Applications in Chemistry
This lesson covers various career paths available for students studying chemistry, including roles in education, engineering, and health services. It also explains the applications of chemistry in food production, medicine, military, and environmental science.
- 05:29 “The various steps we take are scientists to solve problems. And the first step we are like to mention is observation. What is observation? The use of our senses to look at our environment. And see, oh, this is how things...”
- 06:14 “by continuing your experiments. That is under further experiments. Your camera for the experiments and allows other scientists to test your hypotheses. After they have done a good job on that, we created theory within th...”
- 04:42 “and even in time pass. We talk about additive drugs like cocaine, heroin, and more things. These are products of chemistry also. The next we look at is corrosion, corrosion of materials are like roasting of iron. By vers...”
Work, Energy and Power
This lesson covers the definitions of work, energy, and power. It explains potential and kinetic energy as forms of mechanical energy. The lesson also includes calculations related to work done and the concept of power as the rate of doing work.
- 00:00 “Hello students, my name is Uche Ugo, the subject is basic science and I will be taking the topic work energy and power. At the end of this lesson, I would expect each student to have achieved several objectives. The firs...”
- 07:22 “An example of this process or experiment is the steam, which is used in steam engines to allow them to function. Now, how does this steam propel the steam engines? The steam hits off the piston of the steam engine. The p...”
- 00:50 “Then the third one is to be able to explain the concepts of potential kinetic energy which are the two forms of mechanical energy. Then the last objective is to be able to solve calculation problems that arise from probl...”
Solution and Solubility
This lesson covers the concepts of solution, solute, and solvent. It defines solubility and explains different types of solutions, including saturated, unsaturated, and super saturated solutions. Factors affecting solubility and calculations related to solubility are also discussed.
- 00:02 “Good day, everyone. My name is Charles Christopher. I'm the chemistry teacher, and I'll be taking you on the topic solution and solubility. Now, before I begin, I would like to give you the objective of the lesson. Now,...”
- 00:47 “Now, the students should be able to also define the following terms, saturated solution, unsaturated solution, and super saturated solution. And also be able to leave the factor that affects the solubility of the solute...”
- 07:53 “These are collets, where solid particles are dispersed, in liquid medium. A very good example of that, some examples of that are starch, glue, jelly, like your petrullo jelly is an example, so take note of that. Now, we...”
Carbon and its Allotropes
The lesson covers the characteristics of carbon as an element and its various forms, known as allotropes. It explains the presence of carbon in nature, its compounds, and the two types of carbon oxides. The importance of carbon in living systems and its economic significance is also discussed.
- 00:02 “Good day, everyone. My name is Charles Christopher, I'm the chemistry tutor, and I'll be taking you on the topic carbon and its compounds. Now, before we begin, I would like to give you some of the objectives of the less...”
- 00:48 “of wood and coal, then transoccarbonate and hydrogen transoccarbonate as the last one. All right, now introduction. Basically, this is one of the very vital topics we have in chemistry. So I believe that the classes is r...”
- 17:05 “now, is a purest form of code, to have various that will have a piece, you have, you know, other types, which you are going to see very soon. So this particular one contains about 94 to 95 percent of carbon. It has a ver...”
Oxides of Carbon
This lesson covers the two types of carbon oxides: carbon monoxide and carbon dioxide. It explains their formation, characteristics, and methods of preparation in the laboratory. The lesson also defines the term allotrope and discusses the economic importance of these oxides.
- 00:02 “Good day, everyone. My name is Charles Christopher. I'm the chemistry teacher, and I'll be taking you on the topic, all sides of carbon. Now, before I begin, I would like to give you some of the objectives of the class....”
- 35:26 “so you'll find out that for me, they then also measure three metals, basically that are very soluble in water, in the form of the hydro-t transocarbonyl. Thanks for watching, my name is Charles Christopher, till next tim...”
- 33:48 “so for example this is actually used by a manufacturer of glass, so you know, add detergents, okay, so then for this one is deployed in baking powder, or to discharge our carbon-folks, right, so as that helps to reduce t...”
Electric Cells and Current Electricity
The lesson covers the types of electric cells, including primary and secondary cells. It explains the concepts of electromagnetic force, current electricity, potential difference, and resistance. The arrangement of cells in series and parallel is also discussed.
- 41:43 “And we multiply it, we have got E minus V is equals to 1.01 times. Now, we have got us as votes. We have got to take this one as an evolution. Thank you for watching with us. I am M N N D John. See you in the next class.”
- 13:50 “Now, charging by friction, for a body to be charged negatively, we are told that what, charge body can be produced by rubbing an ebonitroid with a foil. Now, for a little charge, a positive body, you said, a body can be...”
- 30:40 “Now, z is a constant of the proportionality, which is known as what? Electrochemical equivalent, which is called the e, c, e, of a substance. It is the mass of that substance deposited by one column of electricity in a p...”