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Your TI-84 Plus can draw graphs, calculate logarithms and exponents, crunch matrices and even do calculus. The bad news is that with this much power packed into one calculator, there simply isn’t room for every function on the keyboard. Case…
Life in the taiga is not easy. The taiga is the second-coldest land biome on Earth, after the frozen and treeless tundra. However, despite the region’s extreme temperatures and heavy snowfall, many animals have adapted to survive and thrive in…
Liters and kilograms are both important units of measure in the metric system and represent fundamental quantities in the SI (International System) units scheme. A liter is a unit of volume, or space. A kilogram is a unit of mass,…
An ecosystem is comprised of all the non-living elements and living species in a specific local environment. Components of most ecosystems include water, air, sunlight, soil, plants, microorganisms, insects and animals. Ecosystems may be terrestrial – that is, on land…
Since the establishment of the metric system in 1790s, the centimeter, meter and other metric units have served as the standard units to measure distance throughout most of the world. The U.S. is the only major country that still uses…
In math, the associative and commutative properties are laws applied to addition and multiplication that always exist. The associative property states that you can re-group numbers and you will get the same answer, and the commutative property states that you…
Abiotic factors are those that are not living but which still have an impact on the ecosystem and the living elements of that system. A change in the abiotic factors of the ecosystem can have a profound influence on the…
There are many different types of moths among the more than 160,000 species worldwide. A lot of moths are nocturnal, meaning they are active at night. However, diurnal moths are active during the day and crepuscular moths are most active…
The word omnivore denotes an animal that eats both plants and animals, including insects. The tropical rain forest is filled with all kinds of animals and plants, and many of the inhabitants of the tropical forests will stalk and eat…
When time is important – like planning for a science fair project – picking seeds that germinate quickly can be a key to success. Radishes push up through soil quickly, as do melon and squash plants. For flowers, choose zinnias…
