What is the advantage of scientific name? It gives the precision and clarity for the naming of an organism which prevents confusion. Scientific names help the reader to learn something about the organism. For example, Leptocephalus has lepto which means slender, and cephalus which means head. What is the difference between the common name and […]
What are some examples of a scientific theory?
What are some examples of a scientific theory? A scientific theory is a broad explanation that is widely accepted because it is supported by a great deal of evidence. Examples of theories in physical science include Dalton’s atomic theory, Einstein’s theory of gravity, and the kinetic theory of matter. How is evolution both a theory […]
How many times does current change in one second?
How many times does current change in one second? In public power distribution systems in the United States, (including household current), the voltage reverses itself 60 times per second. In some countries, the voltage reverses itself 50 times per second. The rate at which alternating current reverses direction is called its frequency, expressed in hertz. […]
How do you identify dinosaur footprints?
How do you identify dinosaur footprints? Footprints also tell scientists whether or not the dinosaur held its tail upright. A droopy tail would have left a telltale skid mark behind the footprints. Dinosaur footprints are sometimes found in groups, which (if the tracks are similar in appearance) counts as evidence of herding behavior. Did the […]
Are the Andes higher than the Rockies?
Are the Andes higher than the Rockies? The Andes are the longest mountain range in the world, covering over 4,300 mi (7,000 km) in length! The Rocky Mountains are located in North America. They extend from New Mexico, northward through Canada, and into Alaska, covering roughly 3,000 mi (4,800 km) in length. How cold is […]
What is an unhealthy simple sugar?
What is an unhealthy simple sugar? This type of sugar, called added sugar, is considered “bad sugar.” In its most processed and refined form (think the white powdery stuff we stir into coffee, or high fructose corn syrup in soft drinks and packaged foods), sugar has absolutely no nutritional value. Are bananas simple sugars? Your […]
How did Florida attract new settlers?
How did Florida attract new settlers? During the 1800s, Florida attracted settlers to its areas because of the abundant land and water resources. Florida developed in the 1800s when settlers built many towns along the coasts and rivers in areas with natural ports. Why did US want Florida? The United States now wanted control of […]
Why is life so hard?
Why is life so hard? Life will always seem hard when we hinge our happiness on the others. It’s hard to be happy when you’ve based your entire existence around the presence of someone else in your life. Or on their overall happiness. Even worse, when that person makes your life more difficult, it’s hard […]
Which has more momentum a heavy truck?
How did the environment of Earth develop over a period?
How did the environment of Earth develop over a period? All of the environments on Earth change over time. Some changes are caused by the slow movement of the continents (plate tectonics) and take millions of years. Other changes are caused by variations in Earth’s climate and take thousands of years. How did the environment […]