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Science vocabulary
4th grade Science vocabulary words
90
Science
4th Grade
05/06/2014

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Term
behavior
Definition
what an animal does; the way a living thing acts; a living things reaction to its environment
Term
community
Definition
a group of different plants and animals, living in a particular area, depending upon each other for food and other needs
Term
evaporate
Definition
to change from a liquid state to a gas state
Term
habitat
Definition
the place where an animal or plant natmally lives or thrives
Term
matter
Definition
the stuff that things are made of; it is composed of atoms; there are three states· liquid, solid and gas
Term
organism
Definition
any living thing
Term
prediction
Definition
a guess based on observation, experience and reasoning
Term
reflect
Definition
to bounce off or send off
Term
scientific inquiry
Definition
the way scientists find facts and solve problems
Term
system
Definition
an orderly combination or arrangement of parts into a whole; a group of interacting objects
Term
volume
Definition
the amount of space an object takes up
Term
thrive
Definition
to grow, do well and be healthy
Term
sequence
Definition
number of events following one another, succession or order of succession
Term
erosion
Definition
caarying weathered materials away from a place
Term
carnivore
Definition
a meat eater; a consumer that eats only other consumers
Term
condensation
Definition
The changing of gas into a liquid
Term
weathering
Definition
The breaking down of Earth's surface into pieces
Term
mass
Definition
the amount of matter something contains.
Term
density
Definition
is the amount of matter compa1ed to the volume
Term
state of matter
Definition
one of three forms that matter can exist- solid, liquid, gas
Term
solid
Definition
matter that has a defmite shape and volume
Term
liquid
Definition
a state of matter that has a definite volume but no definite shape
Term
gas
Definition
matter that has no definite shape and takes up no definite amount of space
Term
mixture
Definition
two or more substances that are combined without changing any of them is
Term
solution
Definition
a mixture in which two or more substances are mixed completely.
Term
solubility
Definition
a measure of how much material will dissolve in another kind of matter
Term
microscopic
Definition
organisms that cannot be seen with the eyes alone
Term
seed dispersion
Definition
when wind water or animals spread seeds
Term
photosynthesis
Definition
the process by which leaves make food for the using carbon dioxide water, and sunlight
Term
consumer
Definition
animals which cannot make their own food
Term
producer
Definition
green plants, which make their own food
Term
decomposer
Definition
living things that feed on wastes and remains of plants and animals
Term
herbivore
Definition
animals that eat only plants
Term
food chain
Definition
movement of food energy in a series of organisms
Term
food web
Definition
a group of food that overlap •
Term
offspring
Definition
the reproduced young of a particular person, animal or plant
Term
observe
Definition
to gather information using the senses; sight, touc taste, smell and hear
Term
object
Definition
something that can be seen or observed, touched, heard, smelled, tasted and described
Term
nutrient
Definition
substances a living thing needs for energy and growth
Term
movement
Definition
the motion of an object such as sliding, rolling, tumbling, bouncing and vibrating.
Term
mechanical energy
Definition
the energy an object has because of its motion and the forces acting on it
Term
metamorphosis
Definition
the process of change in body size and shape of some animals as they develop
Term
migration
Definition
seasonal movement of animals in search of water, food and warmer climate or a particular location for mating
Term
milliliter
Definition
a metric unit for measuring volume, usually liquid volume
Term
absorb
Definition
to take in or swallow up liquids or energy
Term
adaptation
Definition
a structure or behavior that helps a living thing survive in its environment
Term
balance
Definition
an instrument used for comparing the mass or weight of two or more objects
Term
camouflage
Definition
an adaptation on an organism that enables it to blend in with its environment
Term
Celsius
Definition
a metric unit for measuring temperature
Term
centimeter
Definition
a metric unit for measuring length
Term
characteristic
Definition
a property or special featul'e
Term
circuit
Definition
the pathway electricity flows through
Term
classify
Definition
to place into groups based on similar (or different) properties; to sort
Term
conductor
Definition
a material through which electricity can pass; a material through which heat can pass
Term
ecology
Definition
the study of the interrelationship between living things and their environment
Term
energy
Definition
the ability to do work; different types are mechanical, electricity, magnetic, heat, sound, light, chemical and nuclear
Term
environment
Definition
the total of all sunoundings- air, water, vegetation, wildlife, and humans which affect and
Term
force
Definition
a push or pull
Term
friction
Definition
a force that occms when one object rubs against another
Term
function
Definition
a normal action or use
Term
germination
Definition
to begin to grow or develop; sprout
Term
gram
Definition
metric unit for measuring mass or weight
Term
gravity
Definition
a force of attraction between two objects
Term
hibernation
Definition
to spend winter in a state in which the body's metabolism greatly slows down
Term
hypothesis
Definition
what you think the answer to a problem may be; an educated guess
Term
insulator
Definition
a material through which electricity cannot pass; a material through which heat cannot pass
Term
kilogram
Definition
a metric unit used for measuring weight (I kg=l ,OOOg)
Term
life cycle
Definition
the stages in the life of a plant or animal
Term
life span
Definition
the length of time a plant or animal lives
Term
manufacture
Definition
to make something
Term
omnivore
Definition
a consumer that eats both plants and animals
Term
pendulum
Definition
an object suspended from a fixed point, such as the end of a string, which is free to swing back and forth
Term
pole
Definition
the ends of a magnet where the greatest power is found
Term
pollen
Definition
the tiny grains produced by flowers that are transferred by wind, insects, animals, and water, that when combined with a flower's ovules (eggs) produce seeds; usually produced by the stamen of the flower
Term
perspire
Definition
to release extra heat by letting water escape through the skin
Term
population
Definition
the number of one kind of plant or animal living in a community or habitat; the inhabitants of an area
Term
precipitation
Definition
water falling from the sky as rain, snow, sleet or hail
Term
property
Definition
characteristics of an object such as shape, color, size, texture, weight, density, etc.
Term
purpose
Definition
the function; the job or use of an object, thing or part
Term
recycle
Definition
to process or treat something so that it may be used again
Term
revolution
Definition
earth moving in a path around the sun, resulting in one earth year
Term
rotation
Definition
earth spinning around once every twenty-four hours, resulting in day and night
Term
run-off
Definition
water flowing on earth's surface
Term
seed dispersal
Definition
the way in which seeds are spread from one location to another by wind, water or animals
Term
sort
Definition
to group or classify according to properties; arrange in groups
Term
structure
Definition
an · g composed of parts ananged together, the functional union of parts, tissues and organs of a living plant or animal
Term
thermometer
Definition
tool used to measure temperature
Term
traits
Definition
qualities or characteristics of a living thing or species
Term
tuber
Definition
an underground root
Term
unit of measure
Definition
standard quantity used as a basis for measuring
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