ntaexam Arsenic is the third element in the fifteenth column of the periodic table. It is classified as a metalloid because it has some properties similar to metals and some properties similar to nonmetals. The Arsenic … Read more
A mythical monster called a sphinx has a human head and a lion’s body. In ancient Egypt, the head frequently belonged to a divinity or a pharaoh. Sphinx statues were erected by the Egyptians to … Read more
Helium is the 2nd lightest and most common element in the universe. It is at the top of the noble gas group on the periodic table. At room temperature, helium is an odorless, tasteless, and … Read more
The Cheetah is a large cat and is known to be the fastest of any land animal. It can reach speeds of up to 70 miles per hour. Cheetah can accelerate from 0-60 in about … Read more
Tornadoes are one of the most violent and powerful types of weather. They consist of a very rapidly rotating column of air that often forms a funnel. They can be very dangerous because their high-speed … Read more
The brain is where we think. All of our senses are linked to the brain, allowing us to experience the outside world. We remember, have feelings, solve problems, worry about things, dream about the future, … Read more
John Adams is the 2nd President of the United States. John Adams was one of the founding fathers of the United States. He fought for U.S. independence as a Massachusetts delegate to the Continental Congress. … Read more
