SKIP TO CONTENT
Read the sentences.
Fluoride protects your teeth's enamel from cavities. Fluoride is an element found in the Earth's crust.
Now combine the sentences by completing the relative clause.
Fluoride, which i protects your teeth's enamel from cavities.
ref_doc_title.

Confetti

Jumping to level 1 of 1

Excellent!

Now entering the Challenge Zone—are you ready?

Teacher tools