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| states that all organisms are composed of cells, that all cells, that all cells arise from preexisting cells, and that the cell is the basic organizational unit of all organisms. A single organism may comprise only a single, or many billions of cells, and cells themselves range in size from the micron to many centimeters in dimension. |
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| Organisms is associated with cell division and replication, in addition to enlargement cells |
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| Is a tool of science that allows us to organize and classify objects by their observable traits and properties. |
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| are central to the study of biology. The recurring cycle is also evident in the carbon cycle, nitrogen cycle, Krebs cycle, hydrogeologic, cycle, perioic table, and many other processes, including the transformations of energy needed to sustain life. |
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| The discussion of life cycles brings forwar the concept that the offspring of one generation bears likeness to, but also variation from, the previous generation. |
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| The goal of science education is to develop a scientifically literate public. At the elementary level this involves an understanding of how physical traits promote the survival of a species, how environmental changes affect species that are not adapted to those new conditions, and the role of heredity in passing and modifying the traits of successive generations |
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| is a testable statement about the natural world, and as such is the starting point for most scientific experimentation. |
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| are well substantiated explanations of some aspect of the natural world. A scientific theory provides a unified explanation for many related hypotheses |
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| The scientifically literate |
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| individual will distinguish the role and value of scientific thought from other ways of knowing, while maintaining respect and appreciation from the ways of thinking and understanding practiced in disciplines outside of science |
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| is the term for all the living and nonliving things in a given environment and how they interact. Scientifically literate individuals are aware of their surroundings, the interdependence of each part, and the effects that man's activities can have on those surroundings |
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| change over time, both from natural processes and from the activites of man. |
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| The ratio of mass to volume, is an intrinsic property that depends on the matter, but not the amount of matter. |
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| is defined as the amount of space an object occupies |
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| a measure of thickness or flowability |
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| is the smallest particle of an element that retains the properties of the element. |
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| the smallest particle of a compont. Molecules cannot be separated into smaller particles without a chemical change disrupting the chemical bonds |
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| is the energy of motion (KE=1/2mv2) where m is the mas and v the velocity of an object. |
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| is stored in the bonds of our food, held for later conversion to kietic enery and heat in our bodies. |
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| is held in an icicle hanging off the roof (PE=mgh) where m is mass, g is the gravitational force constant and h is the height |
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| dry cells produce electrical energy from chemica potential to the amount of energy. The size of the dry cell is proportional to the amount of starting material, and thus the available current, but not the electromotive force of voltage which is an intrinsic property |
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| VIews atoms and molecules as the fundamental buliding blocks of all matter, would be modified or abandoned if it didn't also explain other observations. |
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| Evaporation from a liquid occurs when individdual molecules gain sufficient energy to break free from the intermolecular attractions in the liquid phase. The stronger the intermolecular attractions, the lower the vapor pressure and the higher the boiling point. |
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| All matter has a temperature above the theoretical value of absolute zero because all matter is in continual motion. |
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| The periodic motion of a pendulum can be timed to determine the period, and experiments devised to explore the effect of pendulum mass, string length or amount of intial deflection. |
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| are one mechanism of energy transport from one location to another. We experience waves directly in the forms of light, should and water, and indirectly through radio and TV, wireless networs, and X-rays |
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| Like sound, are characterized by having the media move along the same axis as the direction of energy |
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| Light is energy and darkness is the absence of that energy |
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| White light comprises all the visible wavelengths. Color is a property that ight alredy has. White light passing through a prism, raindrop, or spectroscope can be spearated into its constituent colors. |
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| is the source for many natural resources essential for modern life, and the recipient of pollution caused by man's activities |
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| preserved remnants of or marks made by plants and animals that were once alive, are one source of evidence about changes in the environment over time. |
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| The earth is made up of 75% of water. The hydrosphere defines our environmnet |
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| is the laer of gases held close to the Earth by gravitational forces. In size, it has been compared with the skin on an apple. The atomosphere is densest close to the surface, where gravity holds the heaver gases and the pressure is greatest. The atmoshere becomes where gravity holds the heavier gases and the pressure is greatest. |
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