by Meghna Rangarajan | Sep 23, 2025 | Student Blogs
Mirrors: Light That Bounces Mirrors create images by reflecting light in predictable ways. Flat (plane) mirrors: These make virtual images (which appear behind the mirror) the same size as the object, but with the left and right sides swapped. Concave mirrors (curved...
by Meghna Rangarajan | Aug 30, 2025 | Student Blogs
Current and Voltage Current is the flow of electricity, and voltage is the force that pushes it. Electric current is the flow of electrons through a conductor, measured in amperes (A). Voltage is the “electric pressure” or push that makes current move, measured in...
by Meghna Rangarajan | Aug 30, 2025 | Student Blogs
What is a Heart Attack? A heart attack happens when blood can’t reach part of the heart muscle. The medical term for a heart attack is myocardial infarction (MI) The heart is a muscle that needs a constant supply of oxygen-rich blood. Coronary arteries are the “pipes”...
by Meghna Rangarajan | Aug 30, 2025 | Student Blogs
How the Body Normally Handles Sugar The body maintains blood sugar balance using insulin, a hormone that controls how glucose enters cells for energy. When we eat food, especially carbohydrates, it breaks down into glucose (sugar). Glucose is absorbed into the...
by Meghna Rangarajan | Aug 23, 2025 | Student Blogs
Sensors in Your Skin Your skin is packed with special nerve endings that sense temperature and send signals to your brain. Your skin has thermoreceptors, tiny sensory cells that detect heat and cold. Warm Receptors – Above 86°F High-threshold Warm Receptors...
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