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 are the 3 major layers of the geosphere?
What are the 3 major layers of the geosphere? The Earth’s geosphere is divided into three chemical sections: The crust, composed almost entirely of light elements, like silicon. The mantle, which is 68% of the Earth’s mass. The core, the innermost layer; it is composed of very dense elements, such as nickel and iron. What […]
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 […]
How many homes can 1 GW power?
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 […]
Which is the least reactive metal?
Which is the least reactive metal? Silver, gold, and platinum are metals with the least reactivity. They are found in nature. Which is a very reactive metal? Caesium Which is more reactive platinum or gold? The more reactive the metal, the more rapid the reaction is. Platinum is placed below gold in the reactivity series. […]
What is the formula for NH4 and O?
What particle size is the easiest to erode?
What particle size is the easiest to erode? In a stream, the most easily eroded particles are small sand grains between 0.2 mm and 0.5 mm. Anything smaller or larger requires a higher water velocity to be eroded and entrained in the flow. What increases the size of particles carried increases? The average velocity (speed) […]
What is the reliability of a source?
What is the reliability of a source? A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence. Scholarly, peer-reviewed articles or books -written by researchers for students and researchers. Original research, extensive bibliography. Why is it important to evaluate sources? Evaluating information encourages you to think critically […]
Why is the sodium potassium pump so important to the human body?
Why is the sodium potassium pump so important to the human body? In the kidneys the Na-K pump helps to maintain sodium and potassium balance in our body. It also plays a key role in maintaining blood pressure and controls cardiac contractions. What human body system depends on the sodium potassium pump? nervous system Why […]