Saguaro National Park receives about 10 inches of rain a year, but has some of the highest biodiversity in North American. Learn how plants and animals are adapted to a hot and dry environment.
Lesson 210
Science
3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade
Mechanical energy is the combined potential and kinetic energy in an object that enables work to occur through the movement [...]
Lesson 301
Difficult doorknobs, funnel races, water wheels and pinwheel power! The Curious Crew learns that a wheel and axle consists of [...]
Lesson 302
Resonant rods, rings and pipes and powerful pendulums! The Curious Crew learns that every object has the potential to vibrate, [...]