This is a simple worksheet that can be done in 10 minutes. I attached 3rd grade and 4th grade versions.
Files:
Flags Activity for Let's Try Unit 1
A simple flag coloring and flag - country matching activity for 3rd grade and 4th grade elementary students.
All content is provided under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License.
simple and really fun
A more pro-looking font than Comic Sans for worksheets that has the lowercase a without its weird head-tail is the Muli font. Check it out!
https://www.fontsquirrel.com/fonts/muli