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Science Final Exam Review
Chapters 9 - 13
50
Science
6th Grade
05/21/2011

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Term
Occurs whenever an object speeds up, slows down or changes direction.
Definition
acceleration
Term
A fixed unmoving object or location.
Definition
reference point
Term
The amount of matter in an object.
Definition
mass
Term
A slide is an example of a __________________.
Definition
inclined plane
Term
Which unit is used to measure work?
Definition
joules
Term
Which simple machine makes work easier by either changing the direction of the force or by reducing the amount of force needed to move an object?
Definition
pully
Term
A block and tackle contains ___________ and __________ pulleys.
Definition
fixed & moveable
Term
___________ is a machine that is an inclined plane would around a cylinder or cone.
Definition
screw
Term
A doorknob is an example of a _____________________.
Definition
wheel & axle
Term
Which machine is a bar that turns on a point?
Definition
lever
Term
A massive star that runs out of fuel, collapses, and disappears from space is called by scientists a __________.
Definition
blackhole
Term
A cloud of dust, gases, and debris is called a ___________.
Definition
nebula
Term
A chunk of frozen gases, water, and dust that orbits the sun is a _____________.
Definition
comet
Term
This telescope uses mirrors to make objects appear bigger.
Definition
reflecting telescope
Term
Stars ____________ light.
Definition
produce
Term
______________ is the brightness of a star.
Definition
Magnitude
Term
_________________ are the largest and brightest stars.
Definition
Supergiants
Term
Stars are _________________________________________.
Definition
glowing balls of gas
Term
______________ ________________ contain 2 stars.
Definition
binary system
Term
The closest star to Earth is the ______________.
Definition
sun
Term
An orbit around the sun by a planet is called a(an) __________________.
Definition
revolution
Term
_____________ is the surface of the sun.
Definition
Photosphere
Term
The ___________ is the Earth's natural satellite.
Definition
Moon
Term
_____________ is the planet closest to the sun.
Definition
Mercury
Term
Who was 1st to walk on the Moon?
Definition
Neil Armstrong
Term
_____________ is the only planet where man can survive in his natural state.
Definition
Earth
Term
______________ is the Sun's atmosphere.
Definition
chromosphere
Term
Energy emitted from the sun producing beautiful colors is the _________________.
Definition
auroras
Term
______________ is the only outer planet not made of gases.
Definition
Pluto
Term
Equinox means _____________________________________.
Definition
equal length of day & night
Term
The period of time between fertilization and the birth of an animal is called ____________________.
Definition
gestation
Term
When a flower is _____________, the pollen grows a tiny tube into the ovule of the ____________.
Definition
pollinated, ovary
Term
________________ occurs when part of a plant not involved in reproduction develops into a new plant.
Definition
vegetative reproduction
Term
In ___________ ___________ the organism splits in half and becomes two separate organisms.
Definition
binary fission
Term
_________________ occurs when a grain of pollen lands on the stigma of a flower.
Definition
fertilization
Term
Plants that have flowers and produce seeds enclosed in a fruit are called ________________.
Definition
angiosperms
Term
Ferns and mosses reproduce through __________.
Definition
spores
Term
Three parts of a seed are ___________, ____________ and _______________.
Definition
embryo, seed coat & germinate
Term
Sea stars (starfish) can reproduce by _______________.
Definition
regeneration
Term
____________ is the male part of the flower.
Definition
stamen
Term
Characteristics are called ______________.
Definition
traits
Term
Crossing purebreds with different forms of the same trait are called __________________.
Definition
hybrids
Term
This genetic disease is known for hard and curved red blood cells.
Definition
sickle cell anemia
Term
The arrangement of cells within an organism is called ________________________.
Definition
genotype
Term
The chemical code that tells cells what to do is ___________.
Definition
DNA
Term
The study of how traits are inherited is ______________
Definition
genetics
Term
______________ is made up of _________ bases.
Definition
DNA, four
Term
_________ __________ is known as the Father of Genetics.
Definition
Gregor Mendel
Term
When both dominant and recessive genes are expressed, the genes are ________________.
Definition
codominant
Term
Plants that show the same trait for many generations when pollinated naturally are ______________.
Definition
purebred
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