Handwashing & Germ Transmission Lesson for Grades 3–5Help upper elementary students understand the science behind germs and handwashing with this engaging health and hygiene lesson for grades 3–5. This ready-to-use Google Slides presentation teaches students how germs spread, why proper handwashing matters, and how simple hygiene habits help keep classrooms healthier. Students will explore: • What germs are (bacteria and viruses) • How germs spread through transmission • Common illnesses ca