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science final

6th grade

TermDefinition
hypothesis an educated guess or prediction based on prior knowledge or research
observation making sense of something by using you five senses
quanitive observation an observation using numbers
quanitive observation an observation with no numbers
infrence a statement that attempts to make sense of a observation
all organisms are made of _______ cells
water, carbon dioxide, proteins, and nucleic acids are the ________ of life with all organisms that must contian building blocks
all organisms __________ to there surrondings respond
all organisms __________ to power there cells energy
organisms must __________ to create offspring that are similar to the parent or parents reproduce
three parts of cell theory all living things are made of cells, cells are the basic units of life, and all cells come from pre exciting celles
4 needs of all living things food, water,shelter, oxygen
unicellular organisms made of 1 cell
multicellular orgainisms with multiple cells
cell membrame the organelle that lets materials pass into the cell but keeps other materials out
cell wall the organelle in plant cells that protects and supports it
ribosome the organelle that produce protien
cytoplasm gel like substance that hold most organelles in place
chloroplast the organelle that uses sunlight to produce food for plants
mitochondria the organelle which breaks down sugars in food to release the energy they contain
nucleas the organelle that directs all cells activites
levels of orgianization cell, tissue, organ and organ system
cell basic unit of structure and function in a living thg
tissue groups of similar cells that perform the same function
organ body structure of different kinds of tissues that work together
organ system groups of organs that work together performing major functions in the body
cellular respiration the process cells use to break down glucose and other food molecules to release energy
skeletal system supports the body protects internal organ, allows movement, store minerals, and produces blood cells
excertory system reloves and filters liquid waste products from the body
digestive system breaks down food, absorbs nutrients and removes waste
nervous system controls the bodys responses to changes within the body and outside it
respiritory system brings oxygen needed by cells, remove carbon dioxide from the bosy
circulatory system transports oxygen, nutrients and fights infections and helps regulate body temp
muscular system with the skelaltet system produce movement, helps circulate blood and move food thro the digestive system
photosynthesis equation 6CO2+ 6H2O=C6H12O6+ 6O2
raw materials of photosynthesis carbon dioxide and water
products of photosynthesis glucose and oxygen
photosynthesis takes place in the __________ of the plant cell chloroplast
cellular respiration C6H12O6+ 6O2=6CO2+ 6H2O
raw materials of cellular respiration glucose and oxygen
products of cellular respiration carbon dioxide and water
cellular respiration takes place in the _______ of the cell mitochondria
biotic living or once living part of a habitat
abiotic non-living part of a habitat
organism a living thing
Population all the embers of one species living in the same area
community all the different populations that live together in the same area
ecosystem the community of organisms that live in the same area, along with their non-living environment
producer makes there own food
consumer eat other organisms
decomposers breaks down dead stuff
energy to do work or cause change
force a push or pull exerted on an object
work force exerted on an object that causes it to move
force unit newtons
distance units meter
work units joules
kinetic energy units joules
mass units kilograms
speed units meters per second
potential energy the energy an object has due to its position
2 type of potential energy gravitational, elastic
electrical energy the energy of electrical changes
thermal energy total, kinetic and potential of particles in an object
heat the transfer of thermal energy from a warmer object to a cooler object
heat moves from ________ objects to ____________ objects hotter, colder
conductor a material that conducts heat well
insulator a material that doesn't conduct heat well
motion the state in which one object distance from another is changing
reference point a place or object used for comparison to determine if an object is in motion, (it should be stationary)
net force the overall force on an object when all the indivisual forces acting up on it are added together
unbalanced forces forces that produce a nonzero net force, which changes an objects motion
acceleration the rate at which velocity is changiing
velocity speed in given direction
balanced forces equal forces acting on an object in opposite directions which does not change an objects motion
speed the distance an object travels per unit of time
inertia the tendency of an object to resist a change in motion
mass the amount of matter in an object
action forces forces exerted on an object
reaction forces equal forces exerted back on the object in the opposite direction
momentum the characteristic of a moving object that is related to the mass and the velocity of an object
newtons 1 law an object at rest will remain at rest and an object in motion will stay in motion unless acted upon by an unbalanced force
newtons 2 law Acceleration of an object will depend on the mass as well as the force acting up on the object
newtons 3 law if one object exerts a force on another object, then the second object will excertort a force of equal strength in the opposite direction on the first object, in other words for every action there will be a equal and opposite reaction
Created by: user-1977651
 

 



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