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Watching a bottom-heavy duck paddle loopily about a marsh or pond, or waddle along the water’s edge, it’s easy to forget just how fast and bullet-like they are on the wing – and just how far many of them migrate…
Teachers do not like chewing gum in the classroom, unless you are completing a science project on the subject. Chewing gum has many properties from the flavor to the ability to aid in concentrations and even kill bacteria in your…
A savanna — the term stems from the Spanish variant, “zavana,” of a Taino word meaning grassy flat — refers to a landscape dominated by grasses and trees of varying densities but too widely spaced to form a closed canopy.…
Mesopotamia is a region of Southwest Asia that corresponds to modern-day Iraq, Syria, western Iran and southeast Turkey. Thousands of years ago Mesopotamia’s weather was semi-arid, with hot summers and sporadic rain. However, the presence of two rivers, the Tigris…
A titration is a technique used to work out the concentration of an unknown solution based on its chemical reaction with a solution of known concentration. The process usually involves adding the known solution (the titrant) to a known quantity…
The difference between flowers and weeds is a matter of perception. The definition of a weed is a plant that is growing in a place in which it not desired, and this can mean different things to different people. A…
You can only calculate a percentage as a figure in grams in some limited situations. If you have a portion of food that is 6 percent fat, and you want to know how much fat you’d be consuming in grams…
Scientific weight scales are one of the most important instruments in the laboratory.They are used to measure the weight and mass of many different kinds of solids, liquids or powders. Assessing and recording weights is a necessary procedure across the…
Business, government and academic activities almost always require the collection and analysis of data. One of the ways to represent numerical data is through graphs, histograms and charts. These visualization techniques allow people to gain better insight into problems and…
Converting figures from the U.S. standards of measures to the metric system may be accomplished with a simple, straightforward process or with an alternative that uses dimensional analysis and is slightly challenging. Using the latter, once you know your equivalent…
