We have a test in Math ______ Science.
We have a test in Math and Science.
Thomas asked for dinner. Thomas asked for dessert.
Thomas asked for dinner and dessert.
Answers the question "Why" by giving a reason
Because
I am wearing shorts ________ it is hot outside.
I am wearing shorts because it is hot outside.
My room was very cold. I forgot to close the window.
My room was very cold because I forgot to close the window.
Shows a cause and an effect
So
My uncles drives fast _________ carefully.
My uncle drives fast, but carefully.
I paid for 4 books. I only got three.
I paid for 4 books, but only got three.
Connects 2 ideas. Another word for "In addition to" + "Also"
She did not want to lose the race, _________ she ran faster.
She did not want to lose the race, so she ran faster.
There was a hurricane. Our house flooded.
There was a hurricane, so our house flooded.
Conjunction that shows a contrast/difference. Can start negative and end positive or start positive and end negative.
But
We got to the airport on time, ___________ we forgot our passports.
We got to the airport on time, but we forgot our passports.
I practiced a lot. I did better than in my first competition.
I practiced a lot, so did better than in my first competition.
Words we use to combine sentences or phrases
Conjunctions