A big sentence

Two sentences combined together with glue

Two sentences combined with a coordinating conjunction (for, and, nor, but, or, yet, so)

A compound subject does NOT mean a compound sentence.› Michael and Brooke are in the room.

A compound predicate does NOT mean a compound sentence.› They are dancing and singing.

There must be two simple sentences (independent clauses that can stand alone) joined together by a comma and conjunction or a semicolon ( ; ).› They are not dating, yet they do like each other.

She loves to eat squash. I love to eat broccoli.

She loves to eat squash, but I love to eat broccoli.She loves to eat squash, but I love to eat broccoli.

Choose a conjunction: for, and, nor, but, or, yet, so.

Choose a conjunction: for, and, nor, but, or, yet, so.

She loves to eat squash, and I love to eat broccoli.She loves to eat squash, and I love to eat broccoli.

Erosion causes soil to move. Weathering breaks down rocks into soil.

Canyons are formed by water erosion. Valleys are formed by glacial erosion.

Canyons are formed by water erosion, so valleys are formed by glacial erosion.

Canyons are formed by water erosion, nor valleys are formed by glacial erosion.Canyons are formed by water erosion, but valleys are formed by glacial erosion.

An example of mechanical weathering is freezing and thawing.

Chemical weathering occurs during acid rain.

An example of mechanical weathering is freezing and thawing.

Chemical weathering occurs during acid rain.