Science - Grade 7
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Electricity and Magnetism
Electricity and magnetism are closely related forces that are part of everyday life. Electricity is the flow of electrons through a material, usually a conductor such as a metal wire. This movement of electrons is called an electric current and is used to power devices like lights, phones, and appliances.
Added: March 26, 2026
Cell Structure
Cells are the smallest units of life capable of carrying out all vital functions. Whether you’re studying biology for school or simply curious about how living things work, understanding cell structure is essential. Every organism—from tiny bacteria to giant trees and humans—is made of cells, and each cell contains specialized parts that work together like a well-organized factory.
Added: February 20, 2026