2.1 Patterns in Earth's History & Processes

a chemical element of atomic number 6, a nonmetal which has two main forms (diamond and graphite) and which also occurs in impure forms in charcoal, soot, and coal.

• isotope

• supernova

• carbon

• protoncarcar

Tags

NGSS.MS-PS1-1

a large, bown-shpaed cavity in the ground or on the surface of a planet or the moon, typically once caused by an explosion or the impact of a meteorite or other celestial body.

• atom

• crater

• proton

• red giantccfsfsfsdfsd

Tags

NGSS.MS-ESS2-2

a very large star of high luminosity and low surface temperature, thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.

• radiometric dating

• red giant

• heavy elements

• asteroid

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass.

• isotope

• asteroid

• carbon

• geologic time

Tags

NGSS.MS-PS1-1

metal with high densities, high atomic weights, and high atomic numbers.

• geologic time

• heavy elements

• red giant

• half-life

Tags

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

the time taken for the radioactivity of a specified isotope to fall to half its original amount.

• crater

• comet

• half-life

• neutron

Tags

NGSS.HS-PS1-8

the basic unit of a chemical element.

• atom

• electron

• neutron

• proton

Tags

NGSS.MS-PS1-1

a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

• proton

• half-life

• radioactive decay

• solar system

Tags

NGSS.MS-PS1-1

the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.

• solar system

• radiometric dating

• geologic time

• atom

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.

• supernova

• solar system

• atom

• red giant

Tags

NGSS.HS-ESS1-3