This can be used a table game or center. The students will read each task card which has 2 sentences on it. Then, they will decide which conjunction can be used to combine the sentences. They will sort the task card under the correct heading of and, so, or but. Finally, the write the compound sentence on the line making sure to add the comma!
I also included a black and white version!
* When printing, select the scale to fit option if border is cut off.