Which of the following is an example of oxidation? Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur. What are three […]
What are the processes of physical and chemical weathering?
What are the processes of physical and chemical weathering? Physical, or mechanical, weathering happens when rock is broken through the force of another substance on the rock such as ice, running water, wind, rapid heating/cooling, or plant growth. Chemical weathering occurs when reactions between rock and another substance dissolve the rock, causing parts of it […]
How dangerous is the luge?
How dangerous is the luge? With speeds up to 90 mph, luge is one of the most dangerous sports in the Olympic Games. Luge is similar to skeleton but with athletes sliding down with their face up and feet first. This high-speed sport requires good upper-body strength and efficient navigation of the course. What is […]
What are some the practical applications of science in your life?
What are some the practical applications of science in your life? Science is involved in cooking, eating, breathing, driving, playing, etc. The fabric we wear, the brush and paste we use, the shampoo, the talcum powder, the oil we apply, everything is the consequence of advancement of science. Life is unimaginable without all this, as […]
Does hypertonic move in or out?
Does hypertonic move in or out? Tonicity and cells Tonicity of solution Solute concentration Water moves… Hypertonic Higher solute in solution than in cell Out of the cell Isotonic Equal amounts of solute in cell and solution Into and out of cell at the same time Hypotonic Lower solute in solution than in cell Into […]
What is a good graph?
Is aluminum hard to machine?
Is aluminum hard to machine? Fortunately, compared with other construction materials, aluminum is relatively easy to machine. It responds well to most fabrication methods, including milling, drilling, cutting, punching and bending. What is the lowest grade of aluminum? Grade 1050 aluminium Is aluminum toxic to the human body? Oral exposure to aluminum is usually not […]
What are the sensory receptors?
What are the sensory receptors? Sensory receptors are dendrites of sensory neurons specialized for receiving specific kinds of stimuli. Sense organs (such as the eyes and ears) consist of sensory neurons with receptors for the special senses (vision, hearing, smell, taste, and equilibrium) together with connective, epithelial, or other tissues. What are the 6 sensory […]
What are the principles of stoichiometry?
What are the principles of stoichiometry? The principles of stoichiometry are based upon the law of conservation of mass. Matter can neither be created nor destroyed, so the mass of every element present in the product(s) of a chemical reaction must be equal to the mass of each and every element present in the reactant(s). […]
What was Clever Hans famous for?
What was Clever Hans famous for? Clever Hans, German der kluge Hans, a performing horse in Berlin in the late 19th and early 20th centuries celebrated for demonstrating remarkable intelligence. The feats performed by the horse were eventually explained as simple behavioral responses to subtle cues provided (perhaps unintentionally) by his handler. Which of the […]