Student HomeWorks

"If you can't explain it simply, you don't understand it well enough."

Albert Einstein
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Mahoor Kiani

Types of energy Kinetic energy is motion––of waves, electrons, atoms, molecules, substances, and objects. Potential energy is stored energy and the energy of position––gravitational energy.

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Parmis Dalili

Physical change and chemical change Changes in the size or form of matter are examples of physical change. Chemical changes occur when a substance combines

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Liana Sadeghi

Animals habitats In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to

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Kourosh Taheri Moghaddam

Animals habitats In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to

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Ronika Bayat

Animals needs The five basic needs of animals are food, water, shelter, space, and air. Food: What a living thing eats for energy.

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Samyar Hasan Pour

Skeletal System The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total

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