Materials in Our Daily Life : 95 : 21 Materials in Our Daily Life The basic aim of science is not only to study and understand natural phenomena but also to use this knowledge to make our lives more comfortable. Science and technology have enabled us to develop more economical and convenient methods to recover useful materials from nature and to put them to various uses. Chemistry has enabled us to synthesize new materials which have desired properties‚ thus‚ making them even better than natural
Premium Sodium carbonate Glass Sodium hydroxide
Mr. Johnson Honors Biology Unit 3: Chemistry of Life Study Guide 1) What are the major components of an atom? Proton‚ Electron and Neutron 2) Which Subatomic particle is most important to biological systems? The most important subatomic particle to biological systems is 3) Be able to indentify various Chemicals bonds. 4) How does polarity of water make it an excellent solvent? The polarity of water is caused by the electro negativity of the oxygen atom‚ so electron density is
Premium Oxygen Water Life
Chemistry Gen: Course Description Year 2 PART - II CGT 21a Unit I. Basic physical chemistry I * Gaseous state: Gas laws‚ kinetic theory of gas‚ collision and gas pressure derivation of gas laws from kinetic theory‚ average kinetic energy of translation. Boltzmann constant and absolute scale of temperature‚ Maxwell’s distribution law of molecular speeds (without derivation)‚ most probable‚ average and root mean square speed of gas molecules‚ principle of equipartition of energy (without
Premium Thermodynamics Entropy Temperature
CHAPTER # 1 Q.DEFINE CHEMISTRY. A. Chemistry‚ a branch of physical science‚ is the study of the composition‚ properties and behavior of matter. Chemistry is concerned with atoms and their interactions with other atoms‚ and particularly with the properties of chemical bonds. Chemistry is also concerned with the interactions between atoms and various forms of energy Q.DEFINE THE BRANCHES OF CHEMISTRY. * Physical chemistry is the study of macroscopic‚ atomic‚ subatomic‚ and particulate phenomena
Premium Chemistry
1.1 Applications of Information Technology in Our Daily Life IT in Education Driving force in educational reform Students have many opportunities to learn the basic computer skills to facilitate their learning. Multimedia learning centre (MMLC) in secondary school Classroom with a projector 1.1 Applications of Information Technology in Our Daily Life IT at Home Smart home technology Allows people to control household and other domestic appliances over the Internet
Premium Public space Internet Hong Kong
Music is part of our lives whether we realize it or not‚ whether we actively participate in it or not‚ whether we appreciate its power or not. This is‚ in fact‚ the real power of music ? that it can affect us whether we are aware of it or not. We need only think of the music heard on the soundtrack of most movies. We may be aware of the action and the dialogue‚ the scenery‚ costumes and special effects‚ yet music is supporting it all and guiding the emotional context. In the best films‚ music is
Premium Music Symphony Jazz
The Importance of Endangered species in our world Importance of Endangered Species in our world INTRODUCTION The term endangered is used by international and national organizations to define plants and animals currently in danger of becoming extinct. Although the term endangered is universally used‚ the definition of an endangered species is greatly varied. In most cases‚ the factors causing an organism to become endangered are human- related. ABSTRACT Geographic distribution
Premium Endangered species
FOREIGN LANQUAGES IN OUR LIFE Language is human speech‚ either spoken or written. Language is the most common system of communication. It allows people to talk to each other and to write their thoughts and ideas. The word «language» may be loosely used to mean any system of communication‚ such as traffic light or Indian smoke signals. But the origin of the world shows its basic use. It comes from the Latin word «lingua»‚ meaning «tongue». And a language still is often called a tongue.
Free Second language Language Lingua franca
Chemistry (the etymology of the word has been much disputed)[1] is the science of matter and the changes it undergoes. The science of matter is also addressed by physics‚ but while physics takes a more general and fundamental approach‚ chemistry is more specialized‚ being concerned with the composition‚ behavior (or reaction)‚ structure‚ and properties of matter‚ as well as the changes it undergoes during chemical reactions.[2] It is a physical science which studies various substances‚ atoms‚ molecules
Premium Chemistry
Testimonies in Our Daily Life We can hear the buzzing of vehicles‚ the sound of the ticking clock the noise of the quarrels around our house. We can hear it almost every day. Everyone is busier than ever; there is no time for chitchatting‚ no time for recreation‚ no time for rest‚ but most of all no time for God. We could no longer handle our own self; we become robots in our daily respective modes of living. But what is lacking? People tried hardly to make something better in order for them to
Premium Personal life Happiness