Welcome to Gravity Launch, where you will pilot a rocket in a series of challenging missions to dock with space stations. Adjust your launch point to send your spaceship out in the right direction and your thrust to give your craft more (or less) oomph. But remember! Earth and the moon both have gravity that must be overcome in order not to wreck your ship before you reach your destination. Start out with Get to Orbit and Land on the Moon missions to perfect your technique with the controls and then go forth on the mission of your choosing. They're divided into three levels of difficulty. Play on your own or race against a friend! Features: · Single-player mode: Three levels, each containing four games · Two-player mode: Four games of increasing difficulty ready for head-to-head play · Free play: The Gravity Launch equivalent of a Zen sand garden, where you can create interesting patterns · Educational information about gravity · Customizable colors and in-game snapshot button · Sign in option for multiple users sharing one iPad This app was developed by AAAS/Science NetLinks, a free online resource for teachers and students. For more science activities and interactives visit sciencenetlinks.com 欢迎重力启动，在那里你将试点火箭在一系列具有挑战性的任务与空间站对接。 调整你发送你的飞船的发射点在正确的方向和推力，让您的工艺更多（或更少）的魅力。但要记住！地球和月球都为了不破坏你的船你到达目的地之前，必须克服重力。 开始使用到的月球任务的轨道和土地的控制和完善自己的技术，然后出去的使命，您所选择的。他们分为三个难度等级。 朋友对自己的或种族上播放！ 产品特点： ·单人游戏模式：3个级别，每个级别含四场比赛 ·两种播放模式：四场比赛的难度越来越大，准备到发挥 ·免费播放：重力推出相当于禅宗的沙园，在那里你可以创造出有趣的图案 ·关于重力的教育信息化 ·自定义颜色和游戏中的快照按钮 ·注册多个用户共享一个iPad的选项 这个应用程序是由美国科学促进会/科学网络链路，一个免费的在线资源，为教师和学生。欲了解更多的科学活动和互动媒体访问sciencenetlinks.com