Junior Certificate

Age of Exploration: Christopher Columbus

Christopher Columbus Christopher Columbus was an explorer, navigator and coloniser in the fifteenth century. He was born in Genoa in 1451 and later studied navigation in Portugal. He believed that the Earth was round and thought that he could reach Asia if he just kept sailing west. He went to… Continue Reading →

Flashcard: Chemical Bonding – Junior Cert Chemistry Terms

Electrons – Negatively charged particles Protons – Have a positive charge Neutrons – the particles of the nucleus that have no charge Hydrogen bond – Attraction between a slightly positive hydrogen atom and a slightly negative atom. Covalent bond – A chemical bond formed when two atoms share electrons Ionic… Continue Reading →

The Time Value of Money – Animated Video

We’ve all heard the phrase “Time is money.” But what do these two things actually have to do with one another? This video explains the math behind interest rates, revealing the equation that will allow you to calculate the future value of your money (if you wisely put it in… Continue Reading →

Essay on Wolfe Tone – Junior Cert History

Theobald Wolfe Tone was the son of a Protestant Dublin carriage-maker. He studied at Trinity College and qualified as a barrister at the age of 26. He was more interested in politics . Tone was angry that the Irish Parliament admitted only Protestants. Though a Protestant himself, he felt religion should… Continue Reading →

What is a Cell?

“A cell is the basic unit of life. This means that we are built out of cells. A house could be built of concrete blocks. The block, in this instance, is the basic unit of the house just as the cell is the basic unit of life.”

Population – Terms

Terms Birth rate: Number of babies born per number of adults per year/unit of time Death rate: Number of people that die per number of adults per unit of time Natural Increase: Birth rate minus the death rate Implications: A high rate of natural increase suggests a rapidly growing population,… Continue Reading →