Personalized Scientist Kids Chemistry Beakers Youth T-Shirt. Test Tube Science Experiment Youth T-Shirt - White gift for boys and girls. Bubbling secret formulas for the future researcher, scientist, lab technician or science teacher. 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.