PPT-Is it a Chemical or Physical Change?

A half eaten apple turns brown Physical or Chemical Change Chemical Change Ripping paper into little pieces Physical or Chemical Change Physical Change Melting a popsicle Physical or Chemical Change. perfume evaporating on your skin . perfume evaporating on your skin . physical.  butter melting .  butter melting . physical. wood rotting.  . wood rotting.  . chemical. autumn leaves changing color. #1: What happens to a substance when a chemical change occurs?. #2: What are some signs of a chemical change?. Bell Ringer: Tuesday 10/1/13. Read the paragraph below and determine the main idea. Then, write and answer the questions. 1.7. Physical Changes. Physical Change. : the substance involved remains the same, even though it may change state or form. . Examples: . Dissolving – stirring a spoonful of sugar in water. Melting –an ice cube melts. and. Changes. By Jordan Parkinson. What are some Physical Properties?. Appearance – O. utward . or visible aspect of a person or thing. . Color - A. . visual attribute of things that results from the light they emit or transmit or reflect. How to tell the difference. Physical properties. Inherent characteristics of a substance that can be determined without altering its composition. Associated with its physical existence. Color, taste, odor, state of matter (solid, liquid, or gas), density, melting point, boiling point.. 1-12-16. Bell Work 1-12-16. When air is heated, it expands and rises. Hot-air balloon pilots use this phenomena to their advantage. These pilots use a gas-flame blower to increase the temperature of the air inside the balloon making the balloon rise. . Chapter 5.1 . BLM 5.1a, 5.1b. Chemicals and . Chemical . Change. CHEMISTRY. – is the study of matter, its changes and its . properties.. MATTER. – is anything that has mass and takes up . space. . Property. Is a description of an object. The tree is TALL. The tree is GREEN. If struck by lighting, the tree could catch FIRE (BURN). Physical Properties. Are determined by the use of the . . . . J. C. Booth Middle School. Coach Dave Edinger. Physical & chemical . properties & changes. Physical & Chemical. Properties. All . substances have . properties. that we can use to identify them. Navo. Middle School Science. Physical Change. A change in the size, shape, form, or state of matter that does not change the matter’s identity.. Examples:. Play-doh. being sculpted. Ice Cream melting. Changes. The Difference. Physical Change . – . matter changes form . but is still made of the same molecules, typically . reversible. Chemical Change . – a . change in the molecules . occurs, . cannot be reversed. Did you remember to write your . name. and . date. in the upper right corner of your paper?. Revised 9/13/11. Fold your paper in half and label each side as shown below:. Physical Changes. Chemical Changes. Chemical change or Physical change ????? Elephant Toothpaste Physical or Chemical? The yeast acts as a catalyst to make the hydrogen peroxide break down really quickly. Hydrogen peroxide breaks down into and. Physical Properties. . Observations that . DO NOT CHANGE . the substance or mixture. Measure. See. Smell. Hear. Touch. Taste. Chemical Properties. Describes how the substance or mixture will react with another.