What sentence type is when we went to the aquarium We saw bright and colorful fish, so we took lots of pictures.

The sentence "When we went to the aquarium, we saw bright and colorful fish, so we took lots of pictures" is a compound sentence.

The sentence "When we went to the aquarium, we saw bright and colorful fish, so we took lots of pictures" is a complex sentence.

The sentence in question is a compound sentence. To determine the sentence type, we can break it down and identify its components.

The sentence "When we went to the aquarium" is a dependent clause that begins with the subordinating conjunction "when." It acts as an adverbial clause, indicating a specific time or condition.

The second part of the sentence, "We saw bright and colorful fish, so we took lots of pictures," is an independent clause that can stand alone as a complete sentence. It includes the subject "we" and the verb "saw," along with additional information.

Since the sentence consists of two independent clauses (joined by the coordinating conjunction "so"), it is classified as a compound sentence. Compound sentences are formed by joining two or more independent clauses together.