Personalized Science Teacher Block Youth T-Shirt. Science teacher with a decorative line sporting a beaker, in a colorful block, is a unique design for teachers at back to school, birthdays, holidays and graduation. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.