$2.99, iPad, Android, iPhone

Teaches: science, creativity, logic, spatial relations, ecology, ecosystems, earth science

$1.99, iPad, iPhone, iPod Touch (iOS 8.0 or later)

Teaches: math, creativity, problem solving, logic, gears, physics, physical science, torque

$80, iPad 2 or later (with camera), iPad Mini

Teaches: spatial learning, logic, art, science, socialization, large group, huddle

$1.99, iPad (24 MB)

Teaches: science, ants, insects, reading

$2.99, iPad, iPhone

Teaches: science, human anatomy, biology, health

Windows, Mac OSX

Teaches: programming, debugging, logic, math, science, STEM

$4.99, iPad, iPhone, iPod Touch (iOS 3.1.3 or higher)

Teaches: science, life cycle of frogs, biology, reproduction

$2.99, *iPad, iPod touch, iPhone

Teaches: fine motor coordination, racing, classifying, counting, letter recognition, science, math, logic

$8, iPad, iPhone

Teaches: science, x-rays, exploration, mechanics, reading

$4.99, iPad

Teaches: science, light, angles, Thomas Edison, physics

$9.99, iPad

Teaches: science, astronomy, the solar system, planets

$8.99, iPad

Teaches: periodic table, science, chemistry

Windows, Mac OSX, Internet Site

Teaches: science, space travel, history, astronauts

$4.99, Windows, Mac OSX, iPad, iPhone, Android

Teaches: science, creativity, building, physics, forces, potential energy

$79.99, LeapPad

Teaches: reading, science, geography

Windows, iPad, iPhone, Android, Chrome

Teaches: geography, science

$79.99, Smart Toy

Teaches: reading, science, geography

$19.95, Win 95, Win 98 (CD-ROM)

Teaches: science, physics

$34.95, Mac

Teaches: science, animal habitats, mapping, matching, creativity

$35, Win 95, Win 3.1, Mac OS (CD-ROM)

Teaches: science: logic, gravity, air pressure, mechanics, causality