General Science (Rare) Flashcards

(33 cards)

1
Q

Acid Rain

A

Precipitation with a low pH thats harmful to life and infrastructure

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2
Q

Amber

A

Fossilized tree resin

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3
Q

Andromeda galaxy

A

Galaxy closest to the Milky Way

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4
Q

Asteroid

A

Small body that orbits the sun

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5
Q

Astronomy

A

Study of celestial objects (stars, planets, galaxies, and so on)

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6
Q

Comet

A

Small icy body that shows a coma and tail when close to the sun

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7
Q

Constellation

A

Pattern of stars in the sky

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8
Q

Distillation

A

Way of separating the parts of a liquid mixture

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9
Q

Energy

A

Ability to do work

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10
Q

Galaxy

A

System of at least 10 million stars held together by gravity

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11
Q

Gravitation

A

Gravity, bodies attract each other based on their masses

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12
Q

Greenhouse effect

A

Heat is absorbed by atmospheric gases and redirected back to earth

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13
Q

Half-life

A

Time for a quantity to reach half of its starting value

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14
Q

Heliocentric

A

Model in which the planets revolve around the sun

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15
Q

Igenous rock

A

Rock formed from cooled lava

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16
Q

Light- year

A

Unit of length; distance light travels in a year; about 6 trillion miles

17
Q

Lunar eclipse

A

The moon covered by earth’s shadow

18
Q

Metamorphic rock

A

An igneous or sedimentary rock exposed to heat and pressure

19
Q

Meteor

A

Visible path of a meteoroid in the atmosphere

20
Q

Meteorite

A

Meteoroid that survives impact on the surface

21
Q

Meteoroid

A

Small body in the solar system; smaller than asteroid

22
Q

Milky Way

23
Q

Orbit

A

Curved path around an object around another object

24
Q

Plate tectonics

A

Theory that describes the motions of Earth’s crust

25
Pulsar
A rotating, magnetized neutron star
26
Quasar
Very bright nucleus of a distant galaxy
27
Satellite
A natural or artificial object that orbits another object
28
Sedimentary Rock
Rock formed by deposits in bodies of water
29
Seismometer
Instrument that measures the motion of the ground
30
Solar eclipse
The moon passing in front of the sun
31
Solar system
The sun and all objects
32
Sunspot
Dark, relatively cool areas on the sun's surface
33
Thermodynamics
Study of heat on other forms of energy