1. By: Ghanem Abdulla Alkubaisi Class:7A

2. pH scale is a scale of 0 to 14. Neutral water has a pH of 7. Acidic water has pH values less than 7, with 0 being the most acidic. You measure it’s color, pH scale is a scale of 0 to 14. Neutral water has a pH of 7. Acidic water has pH values less than 7, with 0 being the most acidic. You measure it’s color, Definition; The pH scale measures how acidic or basic a substance is. Definition; The pH scale measures how acidic or basic a substance is.

3. Acids in solution have a pH below 7.0, a sour taste, Acids are divided into two main classes: (1) Strong acids are very dangerous and can cause severe skin burns, examples are hydrochloric acid, nitric acid, and sulfuric acid. (2) Weak acids are mildly corrosive and normally do not affect skin, examples are acetic acid which is (vinegar). Acids in solution have a pH below 7.0, a sour taste, Acids are divided into two main classes: (1) Strong acids are very dangerous and can cause severe skin burns, examples are hydrochloric acid, nitric acid, and sulfuric acid. (2) Weak acids are mildly corrosive and normally do not affect skin, examples are acetic acid which is (vinegar). AdvantagesDisadvantages the advantages is that it is in some of your foods and sweets. disadvantages it can burn you

4. A base in chemistry is a substance that can accept hydrogen ions Bases can be thought of as the chemical opposite of acids basically base is the opposite of ACID.

5. A Universal indicator is a pH indicator composed of a blend of several compounds that exhibits several smooth colors changes over a pH value range from 1-14 to indicate the acidity or basicity of solutions. A Universal indicator is a pH indicator composed of a blend of several compounds that exhibits several smooth colors changes over a pH value range from 1-14 to indicate the acidity or basicity of solutions. Definition: A universal indicator is typically composed of water, propan-1-l, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt. Definition: A universal indicator is typically composed of water, propan-1-l, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt.

6. Acidic food: Corn, Lentils, Blueberries,,Canned,Glazed Fruits,Cranberries, Almond Milk, Black Bean, cheese, Ice Cream, Ice Milk, Cocoa and Coffee. Acidic food: Corn, Lentils, Blueberries,,Canned,Glazed Fruits,Cranberries, Almond Milk, Black Bean, cheese, Ice Cream, Ice Milk, Cocoa and Coffee. Alkalizing food :Apple apricot, Avocado, Banana (high glycerin), Berries, Blackberries,Cantaloupe, Cherries, sour, Coconut, fresh, Currants, Dates, dried, Figs, dried Grapes, Grapefruit Honeydew Melon and Lemon. Alkalizing food :Apple apricot, Avocado, Banana (high glycerin), Berries, Blackberries,Cantaloupe, Cherries, sour, Coconut, fresh, Currants, Dates, dried, Figs, dried Grapes, Grapefruit Honeydew Melon and Lemon. There are more but those are basic. There are more but those are basic.

7. http://en.wikipedia.org/wiki http://en.wikipedia.org/wiki http://en.wikipedia.org/wiki http://www.angelfire.com/az/sthurston/acid_a lkaline_foods_list.html http://www.angelfire.com/az/sthurston/acid_a lkaline_foods_list.html http://www.angelfire.com/az/sthurston/acid_a lkaline_foods_list.html http://www.angelfire.com/az/sthurston/acid_a lkaline_foods_list.html http://www.google.com.qa/search?q=acidic+ and+basic+foods&ie=utf-8&oe=utf- 8&aq=t&rls=org.mozilla:en- US:official&client=firefox-a http://www.google.com.qa/search?q=acidic+ and+basic+foods&ie=utf-8&oe=utf- 8&aq=t&rls=org.mozilla:en- US:official&client=firefox-a http://www.google.com.qa/search?q=acidic+ and+basic+foods&ie=utf-8&oe=utf- 8&aq=t&rls=org.mozilla:en- US:official&client=firefox-a http://www.google.com.qa/search?q=acidic+ and+basic+foods&ie=utf-8&oe=utf- 8&aq=t&rls=org.mozilla:en- US:official&client=firefox-a