General Science (Rare) Flashcards

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

A

Home galaxy

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
Q

Pulsar

A

A rotating, magnetized neutron star

26
Q

Quasar

A

Very bright nucleus of a distant galaxy

27
Q

Satellite

A

A natural or artificial object that orbits another object

28
Q

Sedimentary Rock

A

Rock formed by deposits in bodies of water

29
Q

Seismometer

A

Instrument that measures the motion of the ground

30
Q

Solar eclipse

A

The moon passing in front of the sun

31
Q

Solar system

A

The sun and all objects

32
Q

Sunspot

A

Dark, relatively cool areas on the sun’s surface

33
Q

Thermodynamics

A

Study of heat on other forms of energy