Physical and Chemical Smore

By Sonia Bhattacharya Science 6

Physical Change

Definition: A physical change is a change that occurs when a substance changes it look or appearance but it is still the same substance

Examples:

1. Mixing colors

2. Salt and water

3. Food coloring and water

4. Paper ripping in half

5. Ice cream melting

Chemical Change

Definition: A chemical change happens when one or more substances are changed into new substances that have new and different properties.

Examples:

1. Burning paper

2. Rusting of iron

3. Fireworks

4. Baking a cake

5. Baking Cookies

Indicators:

1. Odor

2. Change in color

3. Fizzing

4. Foaming

5. Change in temperature

Physical Property

Definition: A physical property is a characteristic of a substance that can be observed without changing the substance into something totally different. You use your 5 senses to observe a substance.

Examples:

1. Color

2. size

3. texture

4. Solubility

5. melting point

Chemical Property

Definition: A chemical property is a characteristic that is observed when one substance interacts with another substance.

Examples:

1. Combustibility

2. Dissolving

3. Flammability

4. Incompatible substances

5. Corrosion

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Physical Change vs. Chemical Change

The difference between a physical and chemical change is that when a physical change occurs, the substance is the same it is just it looks different. When a chemical change occurs, the entire substance changes, like paper burning. All that is left of the paper is ashes. Ashes are a completely different substance than a match or fire.
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Physical Property vs. Chemical Property

The difference between a physical and a chemical property is that a physical property is when you observe something without changing the substance of it. A chemical property is something you observe when one substance interacts with another substance and creates a whole new substance.
The Physical Properties and Chemical Properties of Matter - Chemistry
Chemical and Physical Changes