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Determining the hottest time of day depends on the time of year and your location on the planet. Rays from the sun heat up the planet like a burner on a stove boils water. Even though the burner is set…
Titration measures the concentration of an unknown solution that reacts with a solution of known concentration. The process is often used to check the purity of synthesized chemical compounds, such as pharmaceuticals. The ideal point for the completion of titration…
In the periodic table of elements, you’ll see each element’s atomic weight listed. Scientists use atomic mass units (amu) to describe the mass of atoms, so think of atomic weights in terms of amus. Avogadro’s constant — 6.02 x 10^23…
A fraction represents part of a whole. The bottom number is the denominator, which tells you how many equal parts the whole is divided by. The top number is the numerator, which tells you how many parts of the whole…
A peacock, like a rooster, is always male. Just as a female chicken is a hen, a female peafowl is a peahen. Peafowl (spp. Pavo) are part of the pheasant family and have long been prized and even venerated. Hindus…
A triple beam balance scale is relatively inexpensive and needs no electricity, but it can measure weight with a high degree of accuracy. For that reason, laboratory workers, doctors or anyone who requires a reliable, precise weighing device may use…
Kinetic energy is the energy of motion; it is the energy expressed by moving objects. Whether you are looking for a longer golf drive or a more powerful tool, kinetic energy can help you achieve your goal. Increasing kinetic energy…
The Piedmont is the province farthest east of the Appalachian Mountains, stretching 1,000 miles between southern New York and Alabama. A transitional upland bridging higher country to the west and the low woods and swamps of the Atlantic-Gulf Coastal Plain…
All atoms of an element have the same number of protons in their nuclei; different isotopes, however, have different numbers of neutrons in their nuclei. Hydrogen, for example, has only one proton in its nucleus, but an isotope of hydrogen…
Cheetahs are well known for their speed, which can reach up to 70 miles per hour. But there is more to these creatures than quickness. Cheetahs, which are found primarily in the open plains, woodlands and semi-desert areas of southern…
