At-home activities
![Mechanical Hand video image Engineer Kameelah Majied demonstrates Mechanical Hand STEM activity.](png/mechanical-hand-video-image.png)
Make a Mechanical Hand
Design and build a mechanical hand with four fingers and a thumb that bend and straighten like a human hand.
![Step Launcher_Challenge Video Engineer holds a ping pong ball for Step Launcher engineering activity](png/step-launcher_challenge-video.png)
Design and build a mechanical hand with four fingers and a thumb that bend and straighten like a human hand.