astronaut: Someone trained to travel into space for research and exploration.
current: A fluid – similar to water or air – moving in a recognizable direction. (in electricity) The flow of electricity or the amount of charge moving through some material in a given time.
GOUT: (short for deoxyribonucleic acid) A protracted, double-stranded, helical-shaped molecule found inside most living cells that carries genetic instructions. It is built on a skeleton composed of phosphorus, oxygen and carbon atoms. In all living organisms, from plants and animals to microbes, these instructions tell cells what molecules to make.
football pitch: The field where athletes play American football. Due to its size and familiarity, many individuals use this field as a measure of the size of something. The regulation field (including end zones) is 360 feet (almost 110 meters) long and 160 feet (almost 49 meters) wide.
International Space Station: An artificial satellite orbiting the Earth. The station, run by the United States and Russia, is a research laboratory from which scientists can conduct experiments in biology, physics and astronomy, and make observations of the Earth.
microbe: Short for microorganism. A living thing that is just too small to be seen with the naked eye, including bacteria, some fungi, and lots of other organisms similar to amoebas. Most consist of a single cell.
moon: The natural satellite of every planet.
orbit: The curved path of a celestial object or spacecraft around a galaxy, star, planet, or moon. One complete circumference around a celestial body.
Pacific: The largest of the world’s five oceans. It separates Asia and Australia in the west from North and South America in the east.
planet: A big celestial body orbiting a star, but unlike a star, it produces no visible light.
robot: A machine that may sense its surroundings, process information and respond with specific actions. Some robots can operate without human intervention, while others are guided by a human.
sunny: It has to do with the sun or the radiation it emits. It comes from the Latin word for sun.
