Founder/VP of Education
The Laboratory Safety Institute (LSI)
A Nonprofit Educational Organization for Safety in Science, Industry, and Education
192 Worcester Street, Natick, MA 01760-2252
508-647-1900 Fax: 508-647-0062
Cell: 508-574-6264 Res: 781-237-1335
Skype: labsafe; 508-401-7406
Teach, Learn, and Practice Science Safely
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AACT provides its members with a robust collection of classroom resources created by teachers for teachers. Each month AACT will highlight a new resource to help you create engaging and informative lessons that you can implement into your curriculum.The August High School Classroom Resource of the Month is the inquiry-based lab, Chemistry Composition Challenge. Students will have the opportunity to design a method to solve three chemistry problems involving moles, molecules, and density.
ObjectivesBy the end of this lab, students should be able to:
- Identify an unknown substance using density.
- Complete error analysis on an investigation.
- Understand the relationships between mass, moles, and molecules and related calculations.Teacher Preparation: 5 minutes
Lesson: 60-90 minutes
This resource aligns with the Next Generation Science Standards (NGSS)HS-ETS1-2: Design a solution to a complex real-world problem by breaking it down into small, more manageable problems that can be solved through engineering. Not a member of AACT? Join online to access this classroom resource and many more of our member benefits!
SPECIAL ANNOUNCEMENT: Register for the webinar Leadership and STEM Learning with the Einstein FellowshipJoin Einstein Fellows and alumni on August 23 to learn about their unique experiences they have been granted with fellow educators, discuss what they've learned about teacher leadership, and gain some insight into a day in the life of an Einstein Fellow. Register Today =BB
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