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Oct 20-26, 2019

National Chemistry Week

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National Chemistry Week (NCW) is a public awareness campaign that promotes the value of chemistry in everyday life. ACS members and chemistry enthusiasts celebrate NCW by coordinating events and communicating the importance of chemistry. Read more about NCW.

During 2019’s International Year of the Periodic Table, NCW was celebrated October 20–26 with the theme "Marvelous Metals."

Save the date! National Chemistry Week 2020 will be celebrated October 18–24, 2020 with the theme, "Sticking with Chemistry."

Kids doing chemistry experiments

Plan an Event
Get ideas and tips to coordinate a variety of NCW events.

Teacher doing chemistry experiment with kids

Find an Event
Check for local events in your area!

View all events

Group of people using social media

Spread the Word
Use sample social media posts and branding assets to share the importance of chemistry.

90%+ participation by ACS local sections

Kids doing chemistry experiment

167,000+ issues of Celebrating Chemistry

Celebrating Chemistry Magazines

Kids doing experiments

25,000+ unique visitors to the website

Large crowd during National Chemistry Week

25M+ reach with #NCW

Shop NCW Merchandise

Nan-O-Moles

Nan-O-Moles

National Chemistry Volunteer Buttons

Volunteer Buttons

Periodic Table Cupcake Mix

Chocolate Cupcake Mix

Visit the ACS Store

Find Your
Local NCW Coordinator

Visit the NCW Coordinator Lookup

Map showing NCW Coordinator Locations