Earth

The density of metals ranges from Osmium at the highest density to lithium at the lowest density of any metal. Knowing the periodic table is key…
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Animals with down syndrome like diseases can exist in tigers, dogs, monkeys, and lions. While it is not exactly the same disease as down syndrome,…
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The only way to tell male from female blue jays apart from one another is to observe their behavior. You can distinguish males from females by…
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The map of California cities gives you a sense of just how expansive California is, from San Diego in the south to San Francisco in the…
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A shield volcano is the largest type of volcano on Earth, with low viscosity lava flows and a wide broad shape. The low viscosity, runny,…
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The rock cycle is a concept of geology that describes the transition of rocks between the three rock types: igneous, sedimentary, and metamorphic. The cycle…
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How many countries are there? Officially there are 195 countries in the world, with 44 countries in Europe, 23 countries in North America, 48 countries…
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Flora and fauna refer to the plants and animals of an environment. To remember them, fauna sounds similar to fawn, indicating it refers to animals,…
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The life cycle of a butterfly includes a process called metamorphosis where each butterfly goes through 4 stages from an egg to a larva, then…
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A positive feedback loop is a system where one variable increases the quality of another variable which in turn increases the quantity/occurrence of the first…
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The map of the East Coast of USA consists of 14 states; Florida, South Carolina, Georgia, North Carolina, Maryland, Virginia, Delaware, New York, New Jersey,…
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