Get facts about the Kuiper belt, including what it is, how far out it extends, and what bodies (Kuiper belt objects or KBOs) it contains.| Science Notes and Projects
February 15 is Galileo Galilei's birthday. Galileo was an Italian natural philosopher who was the key figure at the beginning of the scientific revolution and made several major contributions to its progress. Find out more and what else occurred on February 15 in science history.| Science Notes and Projects
Learn about the solar system in astronomy. Get its definition, discover the planets in order, and get interesting facts.| Science Notes and Projects
Get the mass definition in science. Learn what mass is, how it differs from weight, and how it applies to scientific laws and formulas.| Science Notes and Projects
Helium is the second element of the periodic table. These helium facts contain general information, history and chemical and physical data.| Science Notes and Projects
Hydrogen is the first element of the periodic table. These hydrogen facts include general info, history, and chemical and physical data.| Science Notes and Projects
Learn about nuclear fusion. Get the definition and examples of both natural fusion in stars and artificial fusion for weapons and energy.| Science Notes and Projects
Get the definition of a gas in science. See examples of gases including elements, mixtures, and gases in everyday life.| Science Notes and Projects
Get the definition of energy in science, especially physics and chemistry, along with examples of different forms of energy.| Science Notes and Projects
Get the definition of a solid in chemistry and other sciences. Learn the properties of solids and see examples.| Science Notes and Projects
Learn what temperature is in science. Get the temperature definition, units, and examples and see how it differs from heat.| Science Notes and Projects
Get the pressure definition in science. See its units and get example of pressure and how to calculate it.| Science Notes and Projects