| A | B |
|---|
| Accretion | is the process in which solids agglomerate (collide and stick) to form larger and larger objects, and eventually planets are produced. |
| Ann Hodges | Only person credibly known to have been struck by a meteorite. Roof slowed it down, and then bruised her leg. *as of Jan 2021 still true |
| asteroid belt | a region in the Solar System, located roughly between the orbits of the planets Mars and Jupiter, that is occupied by a great many solid, irregularly shaped bodies, of many sizes but much smaller than planets, called asteroids or minor planets |
| asteroids | rocky/metallic objects that orbit the sun but are too small to be considered planets 5) bacteria - have survived dormant in drops of water in rock salt for millions of years, and could have survived a severe mass extinction. |
| Barringer Crate | Meteor Crater is a meteorite impact crater in the northern Arizona desert of the United States. The site was formerly known as the Canyon Diablo Crater and fragments of the meteorite are officially called the Canyon Diablo Meteorite. |
| Daniel Barringer | was a geologist best known as the first person to prove the existence of an impact crater on the Earth, Meteor Crater in Arizona. Sadly he went broke trying to dig down and mine the meteorite. |
| radioactive dating | a method of determining the age of an object using ratios of unstable isotopes |
| Clearing out an Orbit | Why Ceres and Pluto are not planets. |
| Comets | balls of ice, rock, and dust in space with a tail |
| Conservation of Momentum | Momentum of a system remains constant when there are no net external forces acting on it. |
| cool down | what needed to happen to the early Earth for water vapor in the atmosphere to condense forming rain and gathering into basins forming the oceans |
| rays | line patterns of ejecta extending outwards from craters |
| weather | what the moon doesn't have |
| inner planets | 4 hard "rocky" closest to sun |
| outer planets | gas giants |
| nebula | "space cloud" |
| solar nebula | eventually accreted to form planets |
| planet | an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not a star, and has cleared its orbit. |
| planetesimals | ancient "chunks" that made the planets |
| Pluto | hasn't cleared out its orbit. |
| Proto-Earth | Very Young Earth |
| Rock Vapor | Where the oceans and atmosphere came from a tiny bit each time a planetesimal was destroyed. |
| Theia | Smashed into Proto-Earth |
| Wethersfield | Had two houses hit with meteorites. |
| Church Street | Where one of the Wethersfield meteorite hits was. 80's |
| Middletown Avenue | Where one of the Wethersfield meteorite hits was. 70's |
| Kuiper Belt | a region of the solar system including Pluto, believed to contain many comets, asteroids, and other small bodies made largely of ice. |
| Oort Cloud | Way out at the edge of the solar system. |
| Rock Cycle | A process in nature on Earth that recycles rocky materials. |
