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Biotic and Abiotic Factors in Ecology

WEBBiotic and abiotic factors are the two components of an ecosystem. Biotic factors are the living things, like plants, animals, and fungi. Abiotic factors are non-living …

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Human Anatomy Worksheets and Study Guides

WEBThis is a collection of free human anatomy worksheets. The completed worksheets make great study guides for learning bones, muscles, organ systems, etc. …

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Herbivores, Carnivores, and Omnivores

WEBThe animal kingdom is diverse, with species adapted to a wide range of diets. These diets fall into three broad categories: herbivorous, carnivorous, and omnivorous. …

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Independent and Dependent Variables Examples

WEBHere are several examples of independent and dependent variables in experiments: In a study to determine whether how long a student sleeps affects test …

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Leukocytes or White Blood Cells

WEBA normal white blood cell count in adults ranges from 4,500 to 11,000 leukocytes per microliter of blood. However, this varies based on age, gender, and …

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What Is Reverse Osmosis

WEBReverse osmosis or RO is a water purification process that presses water through a semi-permeable membrane. Particles, molecules, and ions that are larger …

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The pH Scale of Common Chemicals

WEBThe pH Scale of Common Chemicals. The pH scale shows how acidic or basic a chemical is in aqueous solution (mixed with water). The scale runs from 0 (most …

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Alkaline vs Acidic

WEBIn chemistry, alkaline refers to something with a high pH (>7), while acidic refers to a substance with a low pH (<7). The terms “alkaline” and “acidic” are …

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What Is Deuterium

WEBDeuterium is one of only five stable isotopes that has both an odd number of protons and an odd number of neutrons. Usually, doubly-odd atoms are unstable and …

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Renewable and Nonrenewable Resources

WEB10 Examples of Nonrenewable Resources. Coal: A fossil fuel primarily for electricity generation and industrial processes. Crude Oil: A liquid fossil fuel that yields …

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What Is Background Radiation

WEBSources and Risks. This entry was posted on April 6, 2021 by Anne Helmenstine (updated on May 10, 2021) Sources of background radiation include radon …

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Can You Drink Heavy Water

WEBWhile heavy water isn’t radioactive, it’s not entirely safe to drink. The issue is the extra mass of heavy water compared with ordinary water. Basically, the mass …

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Mercury Element Facts (Hg or Atomic Number 80)

WEBElement Name: Mercury. Element Symbol: Hg. Atomic Number: 80. Atomic Weight: 200.592. Classification: Transition Metal or Post-Transition Metal. State of …

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Difference Between Ionizing and Non-Ionizing Radiation

WEBThe higher-energy part of the ultraviolet region of spectrum is ionizing radiation, while the lower-energy part is non-ionizing radiation. The dividing line is not …

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Is It Safe to Reboil Water

WEBThe Main Risk of Reboiled Water. One real health risk of reboiling water is that it may superheat and present a burn hazard. Normally, tiny gas bubbles in fresh …

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