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47
Science
8th Grade
04/17/2009

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Term
Independent variable
Definition
The change which is under contorl of the experimenter, Only One.
Term
Dependent variable
Definition
The change that is being measured by the experimenter.
Term
Matter
Definition
Anything that has mass and tkaes up space, Made up of elements.
Term
Cells
Definition
The smallest unit of life.
Term
Organic
Definition
Living or was once living.
Term
Inorganic
Definition
Non-living or never was living
Term
Renewable resources
Definition
Can be made again.
Term
Bar graph
Definition
Used to show unrelated data.
Term
Line graph
Definition
Used to show the progression of related data.
Term
Pie chart
Definition
Used to show categorical data organized into percentages.
Term
Fossil Fuel
Definition
Fuel formed hundreds of millions of years ago from the remains of dead plants and animals.
Term
Nuclear power
Definition
Obtained by the splitting of radioactive elements.
Term
Hydroelectric power
Definition
Obtained by harnessing the energy of moving water.
Term
Energy transformation
Definition
The change from one type of energy to another.
Term
Kinetic energy
Definition
Energy of motion
Term
Potential energy
Definition
Energy of position depends on height (gravity) and mass.
Term
Types of Energy
Definition
Heat, wave, sound, mechanical, solar, light, electrical, chemical, nuclear,
Term
Insulator
Definition
Something that prevents the loss or transfromation of energy.
Term
Conduction
Definition
The movement of heat energy through fluids (liquid and gas) in a cirular motion.
Term
Radiation
Definition
The movement of energy through space.
Term
Consumer
Definition
Organism that gets energy from feeding on others
Term
Predator
Definition
Organism that does the killing
Term
Prey
Definition
Eaten by another
Term
Scavenger
Definition
Feeds on bodies of dead organisms
Term
Producer
Definition
Organism that makes its own food
Term
Decomposer
Definition
Organism that breaks down chemicals from dead organisms
Term
Herbivore
Definition
Eats plants
Term
Carnivore
Definition
Eats meat
Term
Omnivore
Definition
Eats both plant and meat
Term
Food chain
Definition
Series of events when one organism eats another
Term
Food web
Definition
Pattern of overlapping food chains
Term
Ribosome
Definition
Small, grain like structure in the cytoplasm
Term
Endoplasmio retioulum
Definition
Cell structure that forms passages way is which protain and other materials can
Term
Lysosome
Definition
Small round cell structure containing chemicals that break down large food
Term
Chloroplast
Definition
Structure in cell of plants that captures solar energy for food
Term
Mitochondria
Definition
Creates energy for cell; peanut shaped
Term
Photosynthesis
Definition
Process using carbon dioxide, water, and sunlight to make food
Term
Respiration
Definition
Process cells use to break simple food molecules to release their energy
Term
Increase
Definition
Make greater
Term
Decrease
Definition
Make smaller
Term
Fault
Definition
A planar fracture in rock in which the rock on one side of the fracture has moved wtih respect to the rock on the other side
Term
Sedimentary Rock
Definition
A Rock that is organic
Term
Metamorphic Rock
Definition
A rock formed by heat and pressure
Term
Igneous Rock
Definition
A rock formed by molten magma
Term
Sediment
Definition
A deposit as a Sediment
Term
Osmosis
Definition
The transport of water and other molecules across membranes
Term
Diffusion
Definition
the process by which molecules which results to their kinetic energy of motion.
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