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Vocabulary > Science Vocabulary (2 - Second 9 Weeks) > Flashcards

Science Vocabulary (2 - Second 9 Weeks) Flashcards

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1
Q

Asteroid

A

as·ter·oid

  • *Part of Speech:** noun
  • *Own:** celestial body orbiting a star between Mars and Jupiter
  • *Dictionary:** a chunk of rock or iron less than 1,000km (621 miles) in diameter that orbits the sun
  • *Antonym:**
  • *Synonym:** planetoid; starlike

In Science, I found out that in Mars and Jupiter, a lot of asteroids are orbiting the sun.

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2
Q

Astronomer

A

as·tron·o·mer

  • *Part of Speech:** noun
  • *Own:** a scientific observer of the celestial bodies; an expert in astronomy
  • *Dictionary:** one who studies the stars and planets and their movement
  • *Antonym:**
  • *Synonym:** stargazer; uranologist

I read about the astronomer Galileo Galilei in Science today.

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3
Q

Balanced Force

A

bal·anced force

  • *Part of Speech:** noun
  • *Own:** forces that are equal in all except direction; even
  • *Dictionary:** forces that cancel each other out because they are equal in size
  • *Antonym:** disproportioned; unbalanced force
  • *Synonym:** equilibrium; equated

While it’s hard to comprehend, 100 pounds of feathers and 100 of bricks are balanced forces.

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4
Q

Comet

A

com·et

  • *Part of Speech:** noun
  • *Own:** a celestial body moving about the sun
  • *Dictionary:** a chunk of frozen gases, rock, ice, and dust orbiting the sun
  • *Antonym:**
  • *Synonym:** meteor; fireball

I have never actually seen a comet, because I always miss them.

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5
Q

Constellation

A

con·stel·la·tion

  • *Part of Speech:** noun
  • *Own:** the grouping of various stars
  • *Dictionary:** a group of stars
  • *Antonym:**
  • *Synonym:** gathering; company

I like trying to find constellations at night.

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6
Q

Elliptical

A

el·lip·ti·cal

  • *Part of Speech:** adjective
  • *Own:** shaped like an oval
  • *Dictionary:** shaped like a ellipse
  • *Antonym:**
  • *Synonym:** egg-shaped; oblong

Since I can’t draw a perfect circle, I always make an elliptical shape.

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7
Q

Friction

A

fric·tion

  • *Part of Speech:** noun
  • *Own:** a rubbing or discord caused by difference
  • *Dictionary:** a force that acts between two touching objects and that opposes motion
  • *Antonym:** NONE
  • *Synonym:** irritation; erosion

The friction between the magnifying glass and the grass created fire.

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8
Q

fulcrum

A

ful·crum

  • *Part of Speech:** noun
  • *Own:** the point on which a lever rest
  • *Dictionary:** the fixed point on a lever
  • *Antonym:**
  • *Synonym:**

The easiest way to see a fulcrum is by looking at an unused see-saw.

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9
Q

full moon

A

full moon

  • *Part of Speech:** noun
  • *Own:** when the whole moon is being shown
  • *Dictionary:** the moon when the whole of its disk is illuminated, occuring when in opposition, to the sun.
  • *Antonym:**
  • *Synonym:**

Last month, I missed the full moon because I fell asleep.

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10
Q

Galaxy

A

gal·ax·y

  • *Part of Speech:** noun
  • *Own:** a large system of stars
  • *Dictionary:** a group of billions of stars, objects that orbit those stars, gas, and dust
  • *Antonym:**
  • *Synonym:** nebula; star cluster

The galaxy we live in is the Milky Way.

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11
Q

Gravity

A

grav·i·ty

  • *Part of Speech:** noun
  • *Own:** the attraction between celestial bodies; forces of attraction
  • *Dictionary:** the force of attraction between two objects, such as the attraction between Earth and objects on it.
  • *Antonym:** weightedness
  • *Synonym:** heaviness; weight

The gravity chamber at NASA was incredible.

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12
Q

inclined plane

A

in·clined plane

  • *Part of Speech:** verb
  • *Own:** lean or slope; less than a right angle
  • *Dictionary:** A flat, sloping surface
  • *Antonym:** flat; straight
  • *Synonym:** ramp; slant; tilt

A playground slide is an inclined plane.

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13
Q

Inertia

A

in·er·tia

  • *Part of Speech:** noun
  • *Own:** unwillingness to move; stillness
  • *Dictionary:** The property of matter that keeps it moving in a straight line or keeps it at rest
  • *Antonym:** activity; moving
  • *Synonym:** laziness; inactivity

You have to fight inertia if your car is in neutral.

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14
Q

Lunar Eclipse

A

lu·nar e·clipse

Part of Speech: noun
Own:
Dictionary: the Moon passes through some portion of the Earth’s shadow. The Sun, Earth and Moon are aligned and the Earth is in the middle.
Antonym: solar eclipse
Synonym:

I got to witness a lunar eclipse last year.

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15
Q

Momentum

A

mo·men·tum

  • *Part of Speech**: noun
  • *Own:** force of speed of movement
  • *Dictionary:** A measure of how hard it is to slow down or stop an object
  • *Antonym:**
  • *Synonym:** force; drive; thrust

The momentum at which he was running would have made a cheetah jealous.

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16
Q

Moon Phases

A

Moon Phas·es

  • *Part of Speech:** noun
  • *Own:** the stages of the Moon
  • *Dictionary:** a stage in the changing shape the Moon seems to have when it is viewed from Earth
  • *Antonym:**
  • *Synonym:**

I did a project which made me see all the Moon phases.

17
Q

New moon

A

New moon

  • *Part of Speech:** noun
  • *Own:** when no moon or only an adge can be seen
  • *Dictionary:** the moon either when in conjunction with the sun or soon after
  • *Antonym:**
  • *Synonym:**

I learned that there is a New Moon exvery 28 days.

18
Q

Orbit

A

or·bit

  • *Part of Speech:** noun / verb
  • *Own:** noun - an orb or sphere / verb - to move around in an elliptical path
  • *Dictionary:** the path an object follows as it revolves around another object
  • *Antonym:**
  • *Synonym:** rotation; path; track

Earth is one of eight planets that orbit the Sun.

19
Q

Parallel Circuit

A

Par·al·lel Cir·cuit

  • *Part of Speech:** noun
  • *Own:** consisting of or having component parts connected in the same direction
  • *Dictionary:** an electric circuit that has more than one path for the electric charges to follow
  • *Antonym:** Series Circuit
  • *Synonym:**

The lights in my backyard run on a parallel circuit.

20
Q

pulley

A

pul·ley

  • *Part of Speech:** noun
  • *Own:** a wheel with a grooved rim for carrying a line
  • *Dictionary:** a wheel that has a groove along its edge
  • *Antonym:**
  • *Synonym:**

A well is used by lowering a bucket with a pulley, then raising it.

21
Q

screw

A

screw

  • *Part of Speech**: verb
  • *Own:** a threaded cylinder pin or rod
  • *Dictionary:** an inclined plane wrapped around a cylinder or cone
  • *Antonym:** untwist
  • *Synonym:** spiral; wind

Some toys require you to take out the screws before opening.

22
Q

Series Circuit

A

Se·ries Cir·cuit

  • *Part of Speech:** noun
  • *Own:** a circuit having its parts connected in order
  • *Dictionary:** an electric circuit in which the electric charges have only one path to follow
  • *Antonym:** Parallel Circuit
  • *Synonym:** NONE

The entire school’s cafeteria runs on a series circuit.

23
Q

Solar Eclipse

A

so·lar e·clipse

  • *Part of Speech:** noun
  • *Own:**
  • *Dictionary:** the Moon passes between the Sun and the Earth so that the Sun is wholly or partially obscured. This can only happen during a new moon.
  • *Antonym:** lunar eclipse
  • *Synonym:**

I missed the Solar Eclipse last year because I fell asleep.

24
Q

Solar System

A

so·lar sys·tem

  • *Part of Speech:** noun
  • *Own:** the sun together with all the planets and other bodies that revolve around it
  • *Dictionary:** a star and all the planets and other objects that revolve around it
  • *Antonym:**
  • *Synonym:** planetary system

There are eight planets in the Solar System, but Pluto used to be the ninth.

25
Q

Unbalanced Force

A

un·bal·anced force

  • *Part of Speech:** noun
  • *Own: f**orces that are unequal and are on an object; not even
  • *Dictionary:** forces that cause a change in motion because they act on an object and don’t cancel each other out
  • *Antonym:** balanced force; sound
  • *Synonym:** irregular; unstable

The ocean waves cause an unbalnced force which makes floating objects sway in their direction.

26
Q

Universe

A

u·ni·verse

  • *Part of Speech:** noun
  • *Own:** everything that exists - planets, stars, dust, gases, and energy
  • *Dictionary:** everything that exists, including galaxies and everything in them
  • *Antonym:** locality
  • *Synonym:** cosmos; world

My brother’s dream is to explore the universe.

27
Q

Velocity

A

ve·loc·i·ty

  • *Part of Speech:** noun
  • *Own:** speed of motion or action; swiftness
  • *Dictionary:** An object’s speed in a particular direction
  • *Antonym:**
  • *Synonym:** acceleration; rapidness

He drove at such a high velocity, the car flipped over.

28
Q

Waning Moon

A

Wan-ing Moon

  • *Part of Speech:** noun
  • *Own:** gradually decrease in strength or size
  • *Dictionary:** moon shows a bright area that becomes gradually smaller after being full
  • *Antonym:** waxing
  • *Synonym:** declination; diminution

All though a good player, Kobe Bryant’s skills have been waning for years.

29
Q

Waxing Moon

A

wax·ing moon

  • *Part of Speech:** noun
  • *Own:** increase in size or strength
  • *Dictionary:** moon shows a bright area that becomes gradually larger
  • *Antonym:** shrinking; waning
  • *Synonym:** developing; magnifying

In old times, letters were sealed by waxing.

30
Q

wedge

A

wedge

  • *Part of Speech**: noun
  • *Own:** something that serves to part or split
  • *Dictionary:** a simple machine composed of one or two inclined planes
  • *Antonym:** whole
  • *Synonym:** shim; prung

Many people use a wedge as a dor-stopper.

31
Q

wheel and axle

A

wheel and ax·le

  • *Part of Speech:** noun
  • *Own:** a machine which has a wheel that moves on a central part
  • *Dictionary: a** simple machine that has a central pivot around which a wheel moves
  • *Antonym:**
  • *Synonym:**

A Jack-in-the-box is controlled by a wheel and axle.

Vocabulary (29 decks)

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