Planet Sizes (Largest To Smallest):
Jupiter - (diameter = 142,800 km)
Saturn - (diameter = 120,660 km)
Uranus - (diameter = 51,118 km)
Neptune - (diameter -= 49,528 km)
Earth - (diameter = 12,756 km)
Venus - (diameter = 12,104 km)
Mars - (diameter = 6787 km)
Mercury - (diameter = 4879.4 km)
Many Very Elderly Men Just Snooze Under Newspapers
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Nonrenewable energy resources are limited supplies. Like coal, nuclear, oil, and natural gas,
Renewable energy replenishes naturally and over relatively short periods of time. Like solar, wind, water, biomass, and geothermal.
Conductors conduct electrical current very easily because of their free electrons.
Some common conductors are copper, aluminum, gold, and silver.
Insulators oppose electrical current and make poor conductors.
Some common insulators are glass, air, plastic, rubber, and wood
Moon Landing StoryThe Moon moves around the Earth in a movement called revolution. This is very similar to Earth's revolution around the Sun. The path the Moon takes to go all the way around the Earth is called its orbit. It takes about 27 days for the Moon to revolve around the Earth once. The revolution of the Moon around Earth is not its only movement, though! It is also spinning in space.
telescopean optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified.
Things in space which release or reflect light, like stars or planets, can be seen either with the naked eye or with telescopes. By looking at that light, scientists can either directly tell where objects in space are, or at least can make deductions about their locations.