Ключевые слова: algebra, algebraic, amusing, biological, biological science, biology, blank space, chemistry, comical, copy space, copyspace, dry erase board, educate, educating, education, educational, empty space, funny, humor, humorous, humour, humourous, indoors, inside, knowing, knowledge, learn, learning, life science, math, mathematics, natural sciences, negative space, nobody, photography, sciences, skeleton, skeletons, white board, whiteboard, wipeaway board,