Skip to main content

More for You

How does Messi keep the ball close to himself

The science of how Messi keeps the ball close to himself photo credit: ZaleDesigns Messi is a magician with the ball at his feet. He's in my opinion the best player in the sense that he can control the ball so well, runs so fast with the ball & changes the direction at full speed like it's a walk in the park. For starters he started playing very early (at 3) which is crucial if you want to be a good player. In that aspect, he's God gifted as he had dribble skills which is genetic in my opinion. Height He is short which means a low center of gravity so it's difficult to push him off the ball. That's why we see that anyone rarely can topple him down, instead players much larger than him lose possession to him. So his short height suits his style of play & is a blessing in disguise. Change of pace Messi changes his pace really well. He starts slow and runs directly at the defender which means the defender has to stop & focus on him. When he reac...

What are some hot topics in waec chemistry?

Some Chemistry  waec keypoints In 2022 



We have prepared a more detailed keypoints for interested people, drop your whattsapp number to Get it now for free

  1. Amines have a characteristic fishy smell 
  2. The industrial preparation of HNO3 is carried out using Ostwald's process
  3. Heavy chemicals are those chemicals used in large quantities in Industries.
  4. The most used chemical in industries is H2SO4.
  5. NaOH is used for making soap
  6. Fine chemicals are not produced in large quantities. However, they are produced with a high degree of accuracy, e.g AgBr. Fine chemicals include drugs.
  7. Thermite process is used for Welding broken ends of metal parts.
  8. Bessemer process is used for the production of steel
  9. Acheson process is used to produce Graphite
  10. Nigerian Crude oil is called sweet because of its low sulphur content.
  11. Alkanals can be oxidized but Alkanones cannot, why? It is because Alkanals have an oxidizable hydrogen atom attached to the carbonyl carbon but Alkanones do not.
  12. Newspaper appear yellow after prolonged exposure to the Atmosphere because the bleaching action of SO2 from which they were made is reversed by atmospheric oxidation.
  13. Atoms with the same mass number but different atomic numbers are referred to as Isobars 
  14. The lithosphere is composed of rocks and soil
  15. Aromatic compounds are those with one or more benzene rings.
  16. Aliphatic compounds are those with open chains as well as cyclic compounds that do not have benzene ring in their structure.
  17. Hydrocarbons are compounds that contain carbon and hydrogen only.
  18. Water is not added to acid because it could cause an explosion. Addition of water to acid is violently exothermic.
  19. Bunsen Burner is used for heating and for exposing items to flame
  20. Methane is called fire damp because it is the main cause of explosion in poorly ventilated coal mines.
  21. There are basically two types of radioactivity viz natural and artificial radioactivity
  22. Oxygen is the most abundant element in the earth crust.
  23. Nigerian crude oil is called light because it has a low density due to its composition of low molecular weight hydrocarbons.
  24. An Oxide that dissolves in water to form acid is called Acid Anhydride
  25. Metal is an element that ionizes by the loss of (electrons)

Comments

RECENTS

How to predict exam and text questions

                How To Predict Exam/Text Questions how to predict exam questions Predicting the questions that will be on the test is an efficient approach to study for tests. Predicting exam questions can help you concentrate on the most crucial topics to know before taking the test. Identifying the most likely sources of knowledge from which your teacher will generate exam questions is the key to predicting test questions. The following are likely source of a test question Any textbook portions that your teacher discusses in class Your teacher may supply information that is not included in your textbook. questions your teacher ask in class. The information that your teacher writes on the whiteboard Your teacher's PowerPoint presentation contains information that you need to know. Anything your teacher reads out loud to you. Verbal cues, such as information repeated by your teacher. Visual clues, such as information provided by your teacher ...

what is gravity

Physics - Gravitation Introduction All celestial bodies those found in the universe attract each other and the force of attraction among these bodies is called as the  gravitational force . Universal Law of Gravitation Every object in the universe has the property to attract every other object with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them (see the image given below). F  = force of attraction between two the objects ‘A’ & ‘B’ M  = mass of ‘A’ m  = mass of ‘B’ d 2  = the square of the distance between ‘A’ & ‘B’ G  = is the constant of proportionality and is known as the universal gravitation constant. The SI unit of G is  N m 2  kg –2 . It is obtained by substituting the units of force, distance and mass (as given in the following equation − $$G = \frac{Fd^2}{M \times m}$$ Henry Cavendish had calculated the value of  ‘G’  as  6.6...

What is hereditary and evolution

Heredity and Evolution Introduction evolution The principle of heredity determines the process by which traits and characteristics of an organism are reliably inherited. There are some organisms (especially plants) in which there are very less variations and sometimes difficult to establish the differences, but in some other organisms (especially human beings), there are comparatively greater variations. This is the reason that offspring do not look similar. Rules for the Inheritance of Traits – Mendel’s Contributions Johann Mendel is known as " father of modern genetics ." In human beings, the rules for inheritance of traits and characteristics are related to the fact that both the father and the mother equally contribute the genetic material to their child. Further, each trait of an offspring is usually influenced by both paternal and maternal DNA. Johann Mendel, who was an Austrian scientist, had experimented on peas and gave the “ laws of inheritance .” Mendel used a vari...