https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:5th-grade-science-activities/a/how-much-energy-does-a-carnivore-need-to-survive 2026-02-27T18:40:42.57607561Z Activity: How much energy does a carnivore need to survive? Make science come alive in your classroom with this free hands-on activity aligned to elementary school science and ELA standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:5th-grade-science-activities/a/how-do-earths-major-systems-interact 2026-02-27T18:40:42.57607561Z Activity: How do Earth's major systems interact? Make science come alive in your classroom with this free hands-on activity aligned to elementary school science and ELA standards. article https://www.khanacademy.org/science/teacher-resources-ngss-science-domain/x2811526c37de0eab:hands-on-science-activities/x2811526c37de0eab:5th-grade-science-activities/a/activity-how-does-a-tiny-acorn-grow-into-a-giant-oak-tree 2026-02-27T18:40:42.57607561Z Activity: How does a tiny acorn grow into a giant oak tree? Make science come alive in your classroom with this free hands-on activity aligned to elementary school science and ELA standards. article