Choose Insert, and then More Gadgets.
In the Google Sites Editor, open the Insert menu. You will see a list of components you can embed on your site, like Tables, Images, and Links. Find the More Gadgets option, and click it. This lets you add editable tools such as the POWr Poll to your page.
Paste in URL
You will see the Gadget manager. Select Add Gadget by URL. Then copy and paste this exact URL into the box. Select Add to finish.
Change Height and Width
Now that you have embedded your new, fully customizable Poll Widget onto your website, you'll probably want to change the shape and size of the Widget. Using the options in the pop-up, pick a height and width for your plugin. You can also choose to add a border, scrollbar, or title around your Poll Widget, but we don’t recommend it. You'll have more control while editing right through the plugin itself.
Set up POWr Poll
Go to the live Google Sites web page and click the Settings Icon in the upper right corner of your Poll Widget.
In the POWr Editor, click Import Existing Poll, find Poll- and click Copy.