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53 Cards in this Set
- Front
- Back
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Scientific Method |
a series of steps followed to solve problems |
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Hypothesis |
possible explanation or answer to a question |
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Controlled Experiment |
only one factor tested at a time and consists of a control group and one or more experimental groups. |
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Variable |
One factor that differs. |
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Compound light microscope |
instrument that magnifies small objects so they can be seen easily. |
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Electron microscope |
uses a beam of electrons to magnify objects. |
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Area |
how much surface an object has. |
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Volume |
measure of size of an object in a 3D space |
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Mass |
amount of matter |
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Weight |
force of gravity. |
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Temperature |
how hot or cold something is. |
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Scale |
measurement of a model and the actual measurement of the real object. |
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Law |
summary of experimental results and observation. |
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Cell |
structural and functional unit of life. |
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Homeostatis |
maintenance of a stable internal environment. |
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Sexual Reproduction |
2 parents produce offspring that share characteristics from each parents. |
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Asexual Reproduction |
single parent produces offspring that are identical to parent. |
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Metabolism |
sum of all of the activities that the organism perform. |
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Consumers |
eats organisms to get food. |
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Decomposers |
break down food to get energy. |
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Protiens |
large molecules that make up smaller molecules. |
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Carbohydrates |
molecules made of sugar. |
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Lipids |
molecules that can't mix with water. |
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Nucleic Acids |
molecules that carry the directions for how to make proteins. |
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Electromagnetic Wave |
consists of electric and magnetic fields |
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Electromagnetic Spectrum |
entire range of electromagnetic waves |
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Wavelength |
distance from any point on a wave to an identical point |
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Visible Light |
narrow range of wavelengths in the electromagnetic spectrum |
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UV light |
electromagnetic wave that affects things. |
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Reflection |
bouncing back of light rays when they hit an object. |
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Absorption |
transfer of energy carried by a light wave. |
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Scattering |
interaction of light. |
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Transmission |
passing of light through matter. |
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Refraction |
bending of wave as it passes at angle from one medium to another. |
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Convex Lens |
Thicker in the middle than at the edges. |
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Concave Lens |
Thinner in the middle than at the edges. |
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Cell Membrane |
protective layer that covers the cell's surface and acts as a barrier. |
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Organelles |
structures that have specific jobs inside the cell. |
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Nucleus |
Organelle where DNA is stored. |
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Prokaryotes |
Single-celled and no nucleus. |
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Eukaryotes |
Has a nucleus. |
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Cell Wall |
outermost structure |
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Cytoskeleton |
Web of proteins in the cytoplasm of cells. |
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Ribosomes |
Organelles that make proteins. |
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Endoplasmic Reticulum |
folded membranes |
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Chloroplasts |
where photosynthesis takes place. |
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Golgi Complex |
packages and distributes proteins. |
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Vesicle |
Small sac that surrounds material to be moved in/out of a cell. |
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Lysosomes |
found in animal cells. |
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Tissue |
group of cells that work together to make a specific job. |
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Organ |
Structure that is made up of 2+ tissues. |
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Organ System |
Something which does a particular function. |
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Index Fossils |
Fossils that lived during a relatively short time. |
