1. The document provides a to-do list and instructions for science assignments on acids and bases due today including a CSI mystery powder lab and an alien juice bar assignment. 2. It also highlights key points about acids and bases, noting that most liquids are either acidic or basic, and that the pH scale measures the concentration of hydrogen ions (H+) in a solution from 0 to 14. 3. Students are tasked with completing pages 1-3 of the acids and bases lab sheets, answering questions, and creating a Venn diagram comparing acids and bases.

1. You will Need: Acids & Bases Part 1 & 2 – 4 pgs. 7 sides Bookshelf Please Staple Pencil , Colored Pencils Alien Juice Bar – Due Today CSI Mystery Powder Lab – Due Today Today In Science

2. CSI Mystery Powder Lab – Due Today Alien Juice Bar – Due Today Acids & Bases Part 1 & 2 – Complete Pages 1, 2 & 3 Priority List of Tasks

3. Highlight Look around you and every liquid you see will probably be either an acid or a base . The only exception would be distilled water . Distilled water is just water. Most water you drink has ions in it. It is those ions which make something acidic or basic. (alkaline)

4. Highlight Scientist use something called the “pH” scale to measure how acidic or basic a liquid is. (base also known as ALKALINE) The scale goes from “0” to “14” Distilled water is 7 (in the middle) Acids are found between “0” and “6.9” Bases are from “7.1” to “14” Most of the liquid you find every day have a pH near “7”, either a little below or a little above. The pH scale we talk about is actually a measure of the number of H+ ions in a solution .

5. Getting Started ACID BASE ION: A positively or negatively charged particle 7 NEUTRAL 0-6.9 7.1-14 pH Scale: Measures the # of H+ ions in a solution ( P otential H ydrogen Ions)

6. Vocabulary What is it? Scale Range? Neutral on this scale is identified by what #? What is the # range? What kind of Ions? What colors are associated w/Acids on pH paper? What is the # range? What kind of Ions? What colors are associated w/Bases on pH paper? Textbook pg. 286? Word Definition pH Scale Acid Base Corrosive

7. Vocabulary Read what you highlighted! One word answer One word answer Word Definition pH focuses on what kinds of ions? H+ = what kind of substance? OH- = what kind of substance?

8. Characteristics of Acids Pg. 286 What are the unique characteristics of an ACID? Pg. 288 What are Acids used for? Be specific w/name of acid & use

9. Characteristics of Bases Pg. 289 What are the unique characteristics of an BASES? Pg. 291 What are BASES used for? Be specific w/name of base & use

10. The pH scale Shade the center area of your data table with the appropriate color.

11. Conclusion Pg. 3 of Lab Sheets Answer Questions 1-5 Venn Diagram Minimum of 3 bullets for each section….do not need to be in complete sentences. Graphic Organizer 1. Use word bank – First word is pH

12. Remember Complete anything you still owe Should be done w/first 3 pages of Acid & Base lab sheet Computer Lab on Tuesday Binder Check #5 and Target Concepts for Final Exam Happy Martin Luther King Weekend!