In this lab, you will gain an understanding of the basic differences between the properties of acids and bases, learn the role of hydrogen and hydroxide ions in acids and bases, and comprehend the nature of the pH scale with regards to acid and base strength. Students will examine the effects of acids and bases on several chemical pH indicators, determine the pH of several common household materials, and use the knowledge gained to determine the composition of four unknown clear solutions. Kit contains enough materials for 15 groups. Teacher’s Manual and Student Study Guide copymasters are included. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.B Performance Expectations: HS-PS1-3 Cross Cutting Concepts: Patterns Engineering Practices: Planning and Carrying Out Investigations Kit Includes: 25mL Deionized Water 25mL Dilute Acid (0.1M HCl) 25mL Dilute Base (0.1M NaOH) 25mL 0.5% Litmus 25mL 0.02% Methyl Red 25mL 0.5% Bromothymol Blue 25mL 1.0% Phenolphthalein 25mL Vinegar 25mL Household Ammonia 25mL Soap Solution 25mL Filtered Water 25mL Vitamin C Solution 2 Wide-range pH test strips, pkg/50 25mL Unknown Solution #1 (Water) 25mL Unknown Solution #2 (Dilute base) 25mL Unknown Solution #3 (Phenolphthalein) 25mL Unknown Solution #4 (Dilute Acid) 15 Reaction Trays DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only *”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product. WARNING: This product can expose you to chemicals including Phenolphthalein, which is known to the State of California to cause cancer. For more information go to http://www.P65Warnings.ca.gov.