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Chlorine Element-17 T-ShirtNamed from the Greek chloros, meaning green yellow, chlorine is a reactive halogen with a very recognizable color. Its signature uses include water disinfection, PVC plastic, bleach, and many industrial chemicals. Its usefulness comes with hazards that require careful handling and concentration control. Product notes: Made to order graphic T shirt with the design shown on this page. Check the selected size and color before ordering. Fiber content may

A Stroop effect shirt built from color-word interference: the word says GREEN

The equation works for moving particles and also handles massless particles such as photons when the mass term drops out

- Made to order

and whatever the floor has become today

Its signature uses include portable X-ray devices

listed for seasonal clarity

and hazardous enough to require careful control

- Shoulder tape provides stability and prevents stretching

Make America Think Again is a science-and-civics shirt with a very modest proposal: use evidence before forming policy

on a red balloon

Its melting point near body temperature makes gallium visually memorable while its compounds remain important in electronics

: Silk finish