Published on February 9, 2008
Chemical Properties and Changes
Do you remember what Physical Properties are??? Color Shape Mass State of Matter Length Magnetism
State of Matter
Chemical Properties determine how a substance interacts with other substances Some examples are: *flammability *reactivity to an acid *reactivity to water
After a PHYSICAL CHANGE, the appearance of the substance may be different but it is still the same substance EXAMPLES: Cutting a steak Cracking an egg Chopping wood Bending a metal Tearing paper
Cutting a steak
Cracking an egg
Bending a metal
After a CHEMICAL CHANGE, a new substance is produced with NEW PROPERTIES. These properties are different from the original substance! EXAMPLES: Burning wood Frying an egg Digesting a steak Rusting of metal
Frying an egg
Digesting a steak
Rusting of metal
Here are some signs that a CHEMICAL CHANGE took place: New color New odor or smell Gas bubbles or smoke An increase or decrease in temperature
Here are some signs that a CHEMICAL CHANGE took place:
New odor or smell
Gas bubbles or smoke
An increase or decrease in temperature
Physical or Chemical??? Use the A-F cards to separate the Physical Changes from the Chemical Changes! A. You cut a sheet of aluminum foil in half B. Your friend melts some butter for her popcorn C. Your Mom lights a candle in a dark room D. Rubbing alcohol evaporates from your hand E. Hydrogen peroxide bubbles when you put it on a cut on your leg F. You leave the milk on the counter all night and discover it has soured in the morning
Chemical and physical changes are related to chemical and physical properties. Chemical Changes. Chemical changes take place on the molecular level.
Chemical Properties and Changes. Chemical properties of matter describes its "potential" to undergo some chemical change or reaction by virtue of its ...
PHYSICAL PROPERTY CHEMICAL PROPERTY 1. observed with senses 1. indicates how a substance 2. determined without destroying matter ...
In this educational animated movie about Science learn about chemicals, physical, states, solids, liquids, and gases, melting, boiling, and freezing.
physical changes, physical properties, chemical change, chemical properties. FACTS Learn with flashcards, games, and more — for free.
Laboratory Report for Physical and Chemical Properties and Changes Physical Properties of Matter Substance State Color Odor Solubility Effect of
There are two types of change in matter: physical change and chemical change. As the names suggest, physical changes affect physical properties, and ...
Physical Properties Physical properties: Properties that do not change the chemical nature of matter Physical properties can be observed or measured without
WHAT IS A PHYSICAL CHANGE? ! A physical change occurs when the substance changes state but does not change its chemical composition. ! For example ...