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Chemistry: What Are Covalent Compounds?

What Are Covalent Compounds?ChemistryGetting to Know Covalent CompoundsWhat Are Covalent Compounds?Formation of Multiple Covalent BondsProperties of Covalent CompoundsWhat's in a Name? Covalent…

Surveyor

What is this job like? Do you know where your backyard ends and your neighbor's yard begins? Have you ever wondered how maps are created? These are questions for a surveyor. Surveyors measure and…

A vs. An

The Question: Is it "A historian" or "AN historian"? I've seen both. The Answer: This is a contested question. Let's start with the basics. A…

Ten Tips for Better Spelling

This may be the best-known spelling rule: i before e, except after c or when sounded like "ay" as in neighbor and weigh Here are some words that follow the rule: IE words: believe, field…

Theories of the Universe: Bohr's Atomic Theory

Bohr's Atomic TheoryTheories of the UniverseThat Old Quantum TheoryPlanck's ConstantPhotoelectric Effect Explained, the Quantum Strikes AgainBohr's Atomic Theory Neils Bohr is considered the…

World's oldest tree

The Question: What's the world's most long-living tree? The Answer: That title goes to the bristlecone pine in and around California. The oldest known living…

Multiplying Fractions and Mixed Numbers

Multiplying Fractions If your friend has one-quarter of a pie, and she gives you half, how much of the pie do you have? Or, to put it another way, what's half of one-quarter? Or, to put it into…

Article IV

Section 1[Each state to give full faith and credit to the public acts and records of other states.] Full faith and credit shall be given in each State to the public acts, records, and judicial…

Advanced-Level Science Projects: Botany

BotanyAdvanced-Level Science ProjectsBotanyHow Close to a Plant Must Pesticides Be in Order to Be Beneficial?Can Healthy Plants Be Grown in Soil Containing No Microorganisms? Can Cloning Make a…