Students use the engineering design process to prepare a sample of gluep that can best meet their goal.

This site contains 6 lessons: Chapter 1: Matter—Solids, Liquids, and Gases, Chapter 2: Changes of State, Chapter 3: Density, Chapter 4: The Periodic Table & Bonding, Chapter 5: The Water Molecule and Dissolving, Chapter 6: Chemical Change. Each lesson has chapter reading, videos, teacher lesson pages, student activity sheets, activity answer sheets, explore activities, downloadable lessons. Everything you need for each of these topics. Each chapter has multiple lessons breaking down the content.

The concentration of a solution is a simply a measure of the amount of solute dissolved in a given amount of solvent or solution.

Solutions are often referred to as being “dilute” or “concentrated,” but these terms are somewhat vague (qualitative) and not very quantitative.

In this lesson, students explore two "quantitative" methods to express the concentrations of solutions: molarity and molality. Provided are links to two interactive online simulations (PhET), downloadable Student Guides/Activities, a fun laboratory activity, and a worksheet of practice problems to enhance mathematics problem solving.

this is a physics activity that starts with information about heat transfer and then leads into an engineering challenge involving creating a heat shield to protect a glue joint