To embed a Google slide deck in a card so that you can flip through the slides, follow these steps:
Go to the Google Slide deck and go to File > Publish to Web.
A window will pop up. Click on the Embed tab. Copy just the link within the Embed link (the blue highlighted text below)
3. Go to your Kiite card in edit mode and click the Embed Link icon. Paste your link like below:
3. Save your card and you should see your slides in your card! You can go through the slides using the navigation menu bar.