Get 15% off sitewide! Use code 15SALE17B at checkout. Click For Details >>
Use promo code SALE17D at checkout.
Save now on back to school science kits, curriculum, lab kits, and supplies!
Details: Discount excludes sale items, eGift cards, and shipping and handling. This offer cannot be combined with offers that require other promo codes. Offer expires 5 pm Eastern, 8/15/17.