8th Grade Physcial and Chemcial Changes

Standard 1

Students will understand the nature of changes in matter.

Objective 1

Describe the chemical and physical properties of various substances.

a.Differentiate between chemical and physical properties.

By: Dr. Tracey Wheeler

8th Grade: Physical Science

*Look at this picture. See if you can name items that have chemical and physical properties

Chemical Properties

Properties that do change the chemical nature of matter

Example: Chemical changes in matter

Physical Properties

Properties that do not change the chemical nature of matter

Example: Changes in the states of matter

Watch this video on chemical and physical properties

Physical properties are those that can be observed without changing the identity of the substance.

The general properties of matter such as color, density, hardness, are examples of physical properties.

Properties that describe how a substance changes into a completely different substance are called chemical properties.

Flammability and corrosion/oxidation resistance are examples of chemical properties.

*Identify the physical and chemical properties of these items

Check Your Knowledge

*Lets review your knowledge through this online quiz.

*Website

*References

*Review and Practice of Chemical and Physcial Changes(http://www.teacherbridge.org/public/bhs/teachers/Dana/chemphys.html

*Youtube(http://www.youtube.com/watch?v=uJOGy0dgmUU)