Class 7 science -Chapter 4 – Heat – Definition and Explanation of Important Keywords

Class 7 Science – Chapter 4 Heat: Definition and Explanation of Important Keywords”
In this chapter, we explore crucial heat-related terms like “Celsius scale,” which measures temperature, and “conduction,” the process of heat transfer in solids. “Convection” explains heat flow in fluids, while “radiation” details heat transfer without a medium. Understanding these terms is essential for grasping the science of heat.

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formation of lymph

How Lymph is Formed ?

This article explains the formation of lymph, a colorless body fluid. It highlights that lymph originates as interstitial fluid, which collects in lymphatic capillaries, transforming into lymph. This fluid then passes through the lymphatic system, where it is filtered by lymph nodes before returning to the bloodstream. This process is essential for nutrient delivery, waste removal, and immune system support.

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22 Differences Between Plasma and Serum

22 Differences Between Plasma and Serum

Plasma and serum are the two distinct components of blood that vary in definition, composition, and properties. Plasma comprises electrolytes, proteins, enzymes, hormones, metabolites, and clotting factors while serum is devoid of clotting factors. Both require different preparation methods, have clinical significance in disease diagnosis and treatment, and can be used for various purposes such as biomarker analysis, blood transfusions, and research studies. diffrence between plasma and serum explained for students to complete their assignments , homework and exams

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Cardiac Cycle – Class 11th 

The cardiac cycle is the series of events that occur during one heartbeat where the heart contracts and relaxes to pump blood. It includes diastole and systole in which the heart’s chambers fill with blood and then contract to eject blood. The cardiac cycle is regulated by electrical signals, nervous system input, hormones, and it is important for diagnosing and treating heart conditions.

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