https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-how-do-engineers-design-strong-bridges 2026-01-08T01:22:42.243748488Z Activity: How do engineers design strong bridges? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-how-do-engineers-design-safety-cushions-to-save-lives 2026-01-26T00:30:32.82909804Z Activity: How do engineers design safety cushions to save lives? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-why-is-a-neptune-year-so-long 2026-01-26T00:30:32.82909804Z Activity: Why is a Neptune year so long? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-why-do-clothes-develop-static-cling-in-a-dryer 2026-01-26T00:30:32.82909804Z Activity: Why do clothes develop static cling in a dryer? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-how-do-engineers-design-roller-coasters 2026-01-26T00:30:32.82909804Z Activity: How do engineers design roller coasters? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-how-can-motion-produce-electricity 2026-01-26T00:30:32.82909804Z Activity: How can motion produce electricity? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-why-do-optical-discs-reflect-rainbow-colors 2026-01-08T00:49:44.500630731Z Activity: Why do optical discs reflect rainbow colors? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-how-can-starlight-reveal-the-elements-in-a-star 2026-01-09T14:32:08.301501035Z Activity: How can starlight reveal the elements in a star? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:high-school-physics-activities/a/activity-how-do-carbon-dioxide-and-albedo-affect-how-earth-interacts-with-sunlight 2026-01-26T00:30:32.82909804Z Activity: How do carbon dioxide and albedo affect how Earth interacts with sunlight? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article