German forces were attacked on the French shore of Normandy on June 6, 1944, by the Allied Forces of Britain, America, Canada, and France. The Allies launched an attack with a sizable force of more … Read more

Ozone is a gas composed of molecules formed by three oxygen atoms. Its molecular formula is O3. Ozone forms when sunlight hits oxygen (O2) molecules and breaks them down into individual atoms. These individual atoms … Read more

How much does a gallon of water weigh? Simply put, a gallon of water weighs about 8.34 pounds (3.78 kg). However, because the gallon is a unit of volume, not weight, the actual weight of … Read more

Louis Armstrong was born in New Orleans, Louisiana on August 4, 1901. He grew up in a poor neighborhood in a town so rough that it was called a “battlefield.” Life was difficult for Louis … Read more

An elementary particle is a particle that is not made up of any smaller particles. Elementary particles are the building blocks of the universe. All the other particles and matter in the universe are made up … Read more

Tokelau is an island nation in the Pacific Ocean and a territory of New Zealand. The islands were originally settled by Polynesians who migrated from the surrounding islands. In 1889 these islands came under British … Read more

Mitochondria are important parts of our cells because they make energy from food that the rest of the cell can use. Animals and plants are made up of many complex cells called eukaryotic cells. Inside … Read more