Science Vocabulary (2 - Second 9 Weeks) Flashcards
Asteroid
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.
Astronomer
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.
Balanced Force
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.
Comet
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.
Constellation
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.
Elliptical
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.
Friction
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.
fulcrum
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.
full moon
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.
Galaxy
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.
Gravity
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.
inclined plane
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.
Inertia
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.
Lunar Eclipse
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.
Momentum
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.
Moon Phases
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.
New moon
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.
Orbit
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.
Parallel Circuit
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.
pulley
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.
screw
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.
Series Circuit
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.
Solar Eclipse
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.
Solar System
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.
Unbalanced Force
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.
Universe
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.
Velocity
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.
Waning Moon
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.
Waxing Moon
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.
wedge
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.
wheel and axle
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.
