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7th grade Review 201

7th grade final exam terms

Observation information gathered by any of your five senses
Inference a logical conclusions based on observations or prior experience
hypothesis a logical prediction about the outcome of an experiment
photosynthesis how plants make their own food- take in Carbon Dioxide and release Oxygen
Adaptation the changes in an animals body over time (millions of years) that help it to survive and reproduce in its environment
Insect an organism with 6 legs, 3 body parts and an exoskeleton
Pollination the process of a flower's pollen being transported to another flower to make a fruit
pollen male sperm cell of a flower
ovule female reproductive cell of a flower
anther male part of a flower with pollen
stigma female part of the flower that pollen must land on for pollination
ovary the female part of a flower that grows the seed once the egg is fertilized with pollen
Cotyledon the part of a seed that provides energy to the very early plant before it reaches the sun to make its own food
seed coat the outer layer of a seed that protects it
Cell wall a part of a plant cell (NOT animal cell) that gives the cell a rectangular shape and helps prevent it form drying out
mammal an organism that produces milk for its babies, has hair and is warm-blooded
amphibian an organism that is cold-blooded and lives in both land and water
reptile an organism that has scales and is cold-blooded
Igneous rock a rock that is made from cooled magma or lava
Extrusive an igneous rock that is formed on the surface of the earth from cooled lava
intrusive an igneous rock that is formed under the earth from cooled magma
magma molten (melted) rock under the Earth's surface
lava molten (melted rock) on the Earth;s surface
Metamorphic rock a rock formed by heat and pressure
Sedimentary rock a rock made from sediments that are compacted and cemented together
sediments pieces of shell, dirt and sand
rock cycle the cycle that shows how rocks change from one type to another
weathering the process of breaking down rocks into smaller pieces
physical weathering the process of breaking down rocks by force (not chemicals); such as frost wedging
chemical weathering the process of breaking down rocks by chemicals; such as acid rain
fossils teh preserved remains of dead organisms that are buried in layers of sediments; over time these layers of sediments turn into sedimentary rock and create the fossil
Erosion the process of broken down rocks and sediments getting transported away; agents of erosion include water, ice, wind and gravity
seasons caused by the tilt of Earth's axis towards the North Star AND Earth's revolution around the sun
day and night caused by the rotation of the Earth on it's axis
rotation Earth's spinning on it's axis
revolution Earth's circular orbit around the sun
orbit another word for revolution
lunar eclipse when the moon's orbit takes it behind the Earth so that the Earth blocks sunlight from reaching the moon
solar eclipse when the moon's orbit takes it in front of the Earth so that the moon casts a shadow on the Earth as it blocks the sunlight from reaching the Earth
solar system all the planets, stars and galaxies in an area
living something that has all 8 characteristics of life, including made of cells, reproduces, breaths, needs food & water
non-living something that has never been alive and never will be; like a table
dormant something that doesn't show signs of life until it is in the right environment; like a seed placed in water
tectonic plate the HUGE masses of land that cover Earth's crust; they are moving VERY slowly every year
divergence (or divergent plate boundary) when 2 tectonic plates move away form each other; creating ocean trenches and sea floor spreading
convergence (or convergent plate boundary) when 2 tectonic plates move towards each other; creating mountains and volcanoes
transform (or transform plate boundary) when 2 tectonic plates slide past each other, creating earthquakes
continental drift the theory that all the continents used to be connected together and that over time they have drifted (spread) apart to how they look now
exoskeleton the hard outer covering or an insect
Created by: tbasci