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Autonomy

by Mary Guayazan

Big Bang

by Dalia El Serafy

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by Steve Bloom

E-Waste

by Giuliana Barberis

classification of matter

materials

A materials is a substance that is used for making object

Main topic

matter can be classified based on their physical properties

Subtopic

flexibility

hardness

the ability of a material to withstand wear and scratches

strength

the ability of a material to support a heavy load without breaking or tearing

density

mass per unit volume of a material mass DENSITY= ------- volume