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Standard I - Matter

Standard: Students will understand that chemical and physical changes occur in matter.

Objective 1: Describe that matter is neigher created nor destroyed even though they may go through change.
Objective 2: Evaluate evidence that indicates a physical change has occurred.
Objective 3: Investigate evidence for changes in matter that occur during a chemical reaction.


Science Benchmark
The weight of an object is always equal to the sum of its parts, regardless of how it is assembled. In a chemical reaction or physical change matter is neither created nor destroyed. When two or more materials are combined, either a chemical reaction or physical change may occur. Chemical reactions are often indicated when materials give off heat or cool as they take in heat, give off light, give off gas, or change colors. In a chemical reaction, materials are changed into new substances. In a physical change a new substance is not formed.

 

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