A green bed sheet, fabric or thin blanket will work for the green screen (most any solid color you won't be wearing will also work)
Chromebook or other computer
Any device you can record video with such as a smartphone, iPod, iPad, digital camera or other tablet
WeVideo App for Chrome
Optional: keepvid.com is a free and easy web tool if you want to convert Youtube videos to .mp4 to add ready made special effects into your videos
Hang your green screen background in a place where you want to film (even lighting is best where it won't cast shadows)
Set up your device to record your video in front of the green screen or have someone do the recording (I set the iPad on a chair in front of me to record)
Record your video and then load it by USB onto your Chromebook or computer. I used a Chromebook and loaded it into my Google Drive.
Use the WeVideo app or website to edit your video (see tutorial)
You can add other background pictures or videos to create special effects. The dinosaur and scenery were two that I found on Youtube.
You can use keepvid to convert Youtube videos to .mp4 files that work in WeVideo
Render the video when your editing is complete. I uploaded the final movie to Youtube to easily share it on this web page.