Call toll-free 24 hours a day, 7 days a week. Please have your credit card or purchase order number handy. From outside the U.S. call: 603-579-3400
Fax your order form or authorized purchase order toll-free 24 hours a day, 7 days a week. From outside the U.S. fax to: 603-886-4632
Order by mail:
Send your authorized purchase order to:
P.O. Box 3000
Nashua NH 03061-3000
Order online or by e-mail:
Use the product categories to browse our products. When you find an item you wish to purchase then click the 'Add to Cart' button. To view all the items in your shopping cart click the 'View Cart' link at the top of each page. Finally, click the 'Checkout' button to begin the checkout process.
All transactions are made using a secure server. Our Web site encrypts your credit card number prior to transmission over the Internet using secure socket layer (SSL) encryption technology.
Have a question? Don’t see what you need? Call toll-free: 800-258-1302 from 8 AM to 5 PM EST, Monday through Friday.
Items that display the Delta Discount icon earn the following discounts:
Delta Education Exclusives
FOSS®, FOSS Science Stories, Delta Science Modules™, Delta Science Readers™, Delta Science Content Readers™, PreK Discovery Kits, SCIS 3+™, Science in a Nutshell®, Science Dictionaries, Math in a Nutshell®, Fast Food, and items that do not display the icon are not subject to discounts.
Bids and Quotes
Our bid professionals are happy to provide you with the best value for large volume purchases or special projects. Please contact our Bids and Quotes Department at 800-258-1302 or fax to 800-282-9560.
Shipping and Handling
|AK, HI and Int’l||$15.00|
Standard delivery is UPS Ground or equivalent. Overnight, second-day, and other shipping methods are available at an additional cost. Please ask your customer service representative for details.
An additional charge applies to shipments of living materials. Items marked with an asterisk (*) include Living Material Cards. Please allow 3–4 weeks after you send in your card for delivery of living materials. Inclement weather may delay your shipment of living materials to ensure you receive quality product. Living materials are not returnable. Currently we cannot ship living materials to Alaska, Hawaii, Canada, or International countries.
Additional Shipping Charges for Live Items:
|6 or more items||$30.00|
Please call customer service within 10 days of delivery to report damaged shipments. All carriers reserve the right to inspect damaged shipments. We suggest that visibly damaged shipments be refused at the time of delivery.
Credit Cards and P-Card
Please include credit card name, number, expiration date and authorized signature.
Check or Prepaid Orders
Please include shipping charges for your total order and any additional charges noted above, and include appropriate sales tax or provide your tax exempt number.
|Federal Identification Number:||52-2328764|
|California Tax Number:||330HB30-643009|
|Chicago Vendor Number:||23392|
|New York Vendor Number:||DEL-064, Contract #7000525|
100% Satisfaction Guarantee
If, for any reason, you are not satisfied with our products, please call us within 30 days for a Return Authorization Number. You are responsible for return shipping charges. A restocking fee of up to 15% may apply.
Prices are subject to change without notice. Although we make every effort to ensure our product specifications and pricing are 100% accurate, we are not responsible for typographical errors and we cannot guarantee third party pricing.