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Understanding the Earth’s Crust 150 150 SchoolTutoring Academy

Understanding the Earth’s Crust

The interior structure of the earth is also layered like its outer structure. The structure of earth can be defined in two ways: mechanically or chemically. Mechanically it can be divided into lithosphere, asthenosphere, mesosphere, outer core and inner core. Chemically, the earth’s surface can be divided into crust, upper mantle, lower mantle, outer core…

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Overview of the Earth’s Oceans 150 150 SchoolTutoring Academy

Overview of the Earth’s Oceans

A ocean is a body of saline water that covers 70% of Earth’s surface. Life on Earth is believed to be originated in the ocean and it continues to be home to diverse species of life. The oceans affect the weather and temperature of a place by absorbing solar radiations. Ocean contribute to water cycle…

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Crop Rotation: Understanding Social Management 150 150 SchoolTutoring Academy

Crop Rotation: Understanding Social Management

Growing the same crop year after year on the same piece of land is called monocropping. Reaserches have shown that after some time the yield of The mono cropping leads to a number of problems related to the soil, pest and resource utilization and pest management. Crop rotation is solution to many of these problems.…

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Math Fundamentals Properties of Zero and One 150 150 SchoolTutoring Academy

Math Fundamentals Properties of Zero and One

Zero (0) and one (1) are very special numbers. They possess the important properties given below: Addition property of zero Adding 0 to a number leaves its same. 0 is called the additive identity and the property is called the additive identity property. 4 + 0 = 4 0 + 3 = 3 Multiplication property…

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Levers and Classes of Levers 150 150 SchoolTutoring Academy

Levers and Classes of Levers

A lever is a bar or a board that rests on a support called fulcrum which lifts or moves the load. The closer the object is to the fulcrum the easier it is to move it. A level can be used to increase the force that is applied, or make something move in a different…

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Special Right Triangles 150 150 SchoolTutoring Academy

Special Right Triangles

A special right triangle is a right triangle with some special feature that makes the calculations easier. There are two types of special right triangles: 30° – 60° – 90° This is a right triangle whose three angles are in the ratio 1 : 2 : 3 and respectively measure 30°, 60°, and 90°. The sides are in the…

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Tell Me About Fossil Fuels: Source of Energy 150 150 SchoolTutoring Academy

Tell Me About Fossil Fuels: Source of Energy

Fossil fuel is a general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals over millions of years. Fossil fuels are called so because they have been derived from fossils that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure…

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Learning about Place Value 150 150 SchoolTutoring Academy

Learning about Place Value

The place or position of a digit in a number determines its actual value in the number. In other words, the value of a digit depends on its place or position in the number. Each position in a number has a value that is a power of 10. A decimal point separates the positive powers…

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Ions: Anions and Cations 150 150 SchoolTutoring Academy

Ions: Anions and Cations

Atoms are the basic building units of matter around us. Atom is consists of three basic particles: positively charged protons, negatively charged electrons and neutral neurons. Each atom is a different combination of these particles. The combination of these particles decides the properties of matter. Electrons revolve around the nucleus. The nucleus is at the…

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Stem-and-Leaf Plots 150 150 SchoolTutoring Academy

Stem-and-Leaf Plots

Data can be represented in a number of ways. In statistics, stem-and-leaf plot is a device to represent data in graphical form similar to histogram. The data in the stem-and-leaf plot are arranged by place value. The digits in the largest place form the stem and the digits in the smallest place form the leaf…

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