SBC Week 6: A-Z Science Words and Definitions

Hi everyone, it’s hmsshayann

Today, I will create a A-Z list of different science words and their definitions.

A – Asteroid: a small rocky body orbiting the sun.

B – Big Bang: the rapid expansion of matter from a state of extremely high density and temperature that according to current cosmological theories marked the origin of the universe.

C – Crater: a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon

D – Drag: Effect of an atmosphere that slows a spacecraft and forces its orbit to decay.

E – Earth: The third of the four terrestrial planets counting out from the Sun. The distance between the Earth and the Sun is 1 astronomical unit (about 150 million km).

F – Frequency: the rate at which something occurs or is repeated over a particular period of time or in a given sample.

G – Galaxy: a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

H – Heliosphere: the region of space, encompassing the solar system, in which the solar wind has a significant influence.

I – Imager: an electronic or other device that records images of something.

J – Jupiter: fifth planet from the Sun and the largest in the Solar System.

K – Kuiper Belt: a region of the solar system beyond the orbit of Neptune, believed to contain many comets, asteroids, and other small bodies made largely of ice.

L – Light: the natural agent that stimulates sight and makes things visible.

M – Mass: a coherent, typically large body of matter with no definite shape.

N – Nitrogen: the chemical element of atomic number 7, a colorless, odorless unreactive gas that forms about 78 percent of the earth’s atmosphere.

O – Orbit: the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.

P – Plasma: the colorless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended.

Q – Quark: any of a number of subatomic particles carrying a fractional electric charge, postulated as building blocks of the hadrons.

R – Radiation: the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.

S – Star: a fixed luminous point in the night sky that is a large, remote incandescent body like the sun.

T – Telescope: an 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

U – Universe: all existing matter and space considered as a whole; the cosmos.

V –  Volt: the SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance.

W – Watt: the SI unit of power, equivalent to one joule per second, corresponding to the power in an electric circuit in which the potential difference is one volt and the current one ampere.

X –  X-ray: an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light

Y – Yttrium: the chemical element of atomic number 39.

Z – Zonal Wind: flow is a meteorological term regarding atmospheric circulation following a general flow pattern along latitudinal lines, as opposed to meridional flow along longitudinal lines

Earth

Science Dictionary 

That’s all for today!

hmsshayann

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