In our stem class we went around the school to find simple machines. Simple machines are machines that are not compound and make life easier.
Picture 1. ![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKyyctB4zGN9JwVPb3b026jdeX9L4mTB43q7xYYkOKBkeCWaHv7lJE2KhK6eyYAru7yzRGBp83c3AWxdUjuwMRbrU9-P3pcPb2VWQ5eKVYOjKU-_bu0CRSqwxDbZmDhUWcK6HToip-52YZ/s320/IMG_0039.jpg)
This is a tack. A tack is a wedge. It is a wedge because it cuts through
things to make things stay.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKyyctB4zGN9JwVPb3b026jdeX9L4mTB43q7xYYkOKBkeCWaHv7lJE2KhK6eyYAru7yzRGBp83c3AWxdUjuwMRbrU9-P3pcPb2VWQ5eKVYOjKU-_bu0CRSqwxDbZmDhUWcK6HToip-52YZ/s320/IMG_0039.jpg)
This is a tack. A tack is a wedge. It is a wedge because it cuts through
things to make things stay.
Picture 2.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKLH2pLaIu3PepMRew1pWBwSYwc-CoYR355yNPLev3ZJjN8PkAHu6g5o_mFch39i1oW0h4KknMonyJXijaI0u6Fz97xG2SpeEGANlex1RMPwTCcsh8ACMiFdCVt_fTVI3vf7XhVoyPMeuG/s320/IMG_0040.jpg)
This is a ramp. A ramp is an inclined plane.An inclined plane makes things easier to move up or down from place to place.