Periodic table vocabulary, ESL vocabulary worksheets and activities: hydrogen, carbon, oxygen, zinc, heliem, lithium, barium, potassium, calcium, neon, magnesium etc. Features PDF printable worksheets, word search puzzles, spelling match, scrambled sentences, cross words and more. Build your English language vocabulary with the activities we offer. These resources can serve as supplementary TEFL materials at school and also as extra homework for homeschooling children on periodic table vocabulary and definition of words.