Whether your little one is running away from you, or running around in the playground, he/she runs periodically. Get them on track with the sciences in this Periodically Inspired t-shirt!

• Color: Slate Blue

• Short sleeve tee

• 100% cotton jersey, soft-style

• Wash in cold water with like colors

• Tumble dry

What makes you RUN?
★ Ru. Ruthenium is rare transition metal belonging to the platinum group of the periodic table. Most ruthenium produced is used for wear-resistant electrical contacts and the production of thick-film resistors. 
★ N: Nitrogen is a common element in the universe, estimated at about seventh in total abundance in our galaxy and the solar system. Colorless nitrogen gas makes up 78% of the atmosphere! Liquid nitrogen is great for making ice cream and preserving wine.

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