What part of the retina is responsible for the sharpest vision? In the middle of the retina is a small dimple called the fovea or fovea centralis. It is the center of the eye’s sharpest vision and the location of most color perception. What part of the retina is most sensitive to light? fovea centralis […]
What was the first drum set ever made?
What was the first drum set ever made? MCCABE: The earliest surviving examples of drums date back to the 6th century B.C. But the drum set as we know it today is only 100 years old. In 1918, the Chicago-based Ludwig Drum Company debuted the Jazz-Er-Up, an all-in-one set with a single-bass drum and pedal, […]
What are the three components of an electrical circuit?
What are the three components of an electrical circuit? Electric circuits An electric circuit has three parts: An energy source – like a battery or mains power. An energy receiver – like a lightbulb. An energy pathway – like a wire. Why you should not waste electricity? We should not waste electricity because it is […]
When two or more solid substances are mixed together they liquefy is called?
When two or more solid substances are mixed together they liquefy is called? In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities are retained […]
How is energy transferred from one object to another?
How is energy transferred from one object to another? The two ways that energy can be transferred are by doing work and by heat transfer. Can an object have work? In the physics sense, work is never something an object has. It is only something that one object does to another. Work changes the amount […]
What is the code for major depressive disorder?
What is the code for major depressive disorder? Code F33. 1 is the diagnosis code used for Major Depressive Disorder (MDD), Recurrent, Moderate. It is a mental disorder characterized by a pervasive and persistent low mood that is accompanied by low self-esteem and by a loss of interest or pleasure in normally enjoyable activities. What […]
What is all matter made up of?
What is all matter made up of? Explain that all matter on Earth exists in the form of a solid, liquid, or gas, and that solids, liquids, and gases are all made of extremely tiny particles called atoms and molecules. Tell students that an atom is the smallest building block of matter and a molecule […]
How does the jet stream affect the weather where you live?
How does the jet stream affect the weather where you live? How Do Jet Streams Affect Weather? The fast-moving air currents in a jet stream can transport weather systems across the United States, affecting temperature and precipitation. However, if a weather system is far away from a jet stream, it might stay in one place, […]
Do we need oxidants?
Do we need oxidants? Oxidation can damage vital molecules in our cells, including DNA and proteins, which are responsible for many body processes. Molecules such as DNA are needed for cells to function properly, so if too many are damaged, the cell can malfunction or die. This is why antioxidants are important. Why are oxidants […]
What is the largest body of water on Earth?
What is the largest body of water on Earth? Pacific Ocean What are the four bodies of water? There are five classifications of bodies of water: Oceans, seas, lakes, rivers, and canals. There are 5 oceans: Atlantic, Pacific, Indian, Arctic, and Southern. They are salt water and cover 2/3 of the earth’s surface. Seas are […]