What are the 7 Supercontinents? During the existence of the Earth seven different supercontinents had been on the surface of the planet which will be presented now. Vaalbara. Kenorland. Columbia (Nuna) Rodinia. Pannotia. Pangaea. What caused Pangea to break up? About 180 million years ago the supercontinent Pangea began to break up. Scientists believe that […]
What can you put on ice to melt it?
What can you put on ice to melt it? Rubbing alcohol or isopropyl alcohol, an ingredient found in most commercial deicing products, can be used on its own to melt ice. It has a freezing temperature of about -20 degrees Fahrenheit, which slows the freezing process of water. How do you break up rock salt […]
Why do objects with more mass fall faster?
Why do objects with more mass fall faster? As learned above, the amount of air resistance depends upon the speed of the object. Thus, more massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air […]
How do you convert KN to MG?
What plants are in the tropical dry forest?
What plants are in the tropical dry forest? Drought-resistant epiphytes (orchids, bromeliads and cacti) may be abundant. The trees have thicker, more ridged, bark; deeper roots without buttresses; much more variable leaves, including many compound-leaved legumes; and more species with thorns. How do humans affect the tropical dry forest? Deforestation and farming land for cattle […]
Does kinetic energy increase temperature?
Does kinetic energy increase temperature? When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object’s thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases. Is kinetic energy dependent on temperature? Temperature affects the […]
How does dissolve work?
How does dissolve work? A solution is made when one substance called the solute “dissolves” into another substance called the solvent. Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules. They do this by pulling away the ions and then surrounding the salt molecules. […]
Are tall people smarter?
Are tall people smarter? Men on average are taller and have a higher IQ than women however, women’s IQ’s have been rising significantly more over the years and have even surpassed men in other countries such as Iceland. This means that health and culture may be more of a factor to intelligence than height. Do […]
What are 3 types of weathering?
What are 3 types of weathering? It does not involve the removal of rock material. There are three types of weathering, physical, chemical and biological. What are the 5 main causes of physical weathering? Physical weathering, also known as mechanical weather, is the process of rocks and minerals on Earth’s surface breaking down or dissolving […]
What is considered a strong negative correlation?
What is considered a strong negative correlation? A perfect negative correlation has a value of -1.0 and indicates that when X increases by z units, Y decreases by exactly z; and vice-versa. In general, -1.0 to -0.70 suggests a strong negative correlation, -0.50 a moderate negative relationship, and -0.30 a weak correlation. What is the […]