How Are Tornadoes Classified?
How Are Tornadoes Classified? Since 2007, the United States has classified tornadoes using the Enhanced Fujita Scale, also called the EF Scale, which employs estimates of tornado strength based …
Category: Featured
Different Types of Birthmarks – 7 Most Common Types, Prevalence, & Risk Factors
Different types of birthmarks fall into two categories-pigmented birthmarks and vascular birthmarks. Pigmented birthmarks occur when you have more pigment on one part of your skin than another. Vascular …
At What Temperature Does Water Freeze?
At What Temperature Does Water Freeze? Water freezes at a temperature of 32 degrees Fahrenheit, 0 degrees Celsius, and 273 degrees Kelvin.—at sea level. The freezing point of water …
How Many Protons Are in Nitrogen?
How Many Protons Are In Nitrogen? Nitrogen has seven protons, 2 protons on the 1st shell and 5 protons on the second. The periodic table has several categorizations for …
The Science of Choosing a Lipstick Shade
When choosing a lipstick shade, many factors come into play, such as skin tone, other makeup colors, day/evening, seasons, etc. There are no set rules, but a few factors …