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Trade in the Middle Ages
Merchants, alliances, and the dissolving of class distinctions were all affected by trade in the Middle Ages. Click here to learn about Medieval trade in Europe!
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Differences in Boiling Points
The bonding and structure at a molecular level give us valuable information about the properties of that substance. Learn the chemistry behind bonds here!
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ACCUPLACER® Study Guide
Get the help you need on the ACCUPLACER test with our ACCUPLACER study guide! Review the key concepts you need to know on your exam.
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Newborn Apgar Score
Dr. Virginia Apgar made the newborn Apgar scoring system to evaluate the newborn's physical condition. Learn how this is used in medical practice here!
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Osteoporosis
Osteoporosis means porous, weak bones, and certain risk factors make a person more susceptible to its development. Learn more about this bone disorder!
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What is Static Electricity?
Static electricity happens when protons and electrons are imbalanced, producing excess charge. Learn how static electricity begins and transfers here!
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Diffraction of Light Waves
Dispersion and diffraction are two ways light waves distribute themselves in patterns. Learn about refractive material and experimental apertures for light here!
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Ancient Egypt
Egyptian rank ranged from the Pharaoh to the peasants who worked the lands of the Nile valley. Discover what contributed to Ancient Egypt’s incredible culture.
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Style, Tone, and Mood
An author's descriptions in their writing can change the overall mood or tone of a piece. Learn the role of mood and tone in writing and how to use them here!
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Opinions About the War of 1812
Should America have become involved in the War of 1812? To fully learn about this controversial time, take a deeper look at contemporary opinions.