My Science Project

By: Adrian Allotey

Physical and Chemical Properties

Physical properties are used to characterize matter and energy and their interactions. Some examples include color, mass, density, and volume.

Chemical properties are used to characterize materials in reactions that change their identity. Some examples include burning, rusting, heating, and tarnishing.

Physical and Chemical Change

Physical Change: It does not produce a new substance. The appearance can change. Some examples include crushing a can, melting an ice cube, cutting paper,and breaking a bottle.

Chemical Change: It does produce a new substance. Examples include combustion, cooking an egg, rusting an iron and change of odor.

Chemical Reactions

Chemical Reaction: A process that involves changes in the structure and energy content of atoms or molecules. Examples include temperature change, water displacement, color change, and gas formation.
This is a picture of equal chemical formulas. The reactants are the substances and the products are what the substances change into.

Law of Conservation of Mass

The Law of Conservation of Mass is a fundamental principle of classic physics that matter cannot be created or destroyed in an isolated area.