Online Writing Lab at Purdue University
Purdue University Owl: Exercise: Commas With Nonessential Elements Exercise 3
This Purdue University OWL (Online Writing Lab) provides practice with placing commas in sentences that have nonessential elements in them.
Online Writing Lab at Purdue University
Purdue University Owl: Exercise: Commas With Nonessential Elements Exercise 2
This Purdue University OWL (Online Writing Lab) provides practice with identifying essential and nonessential phrases and clauses. Students will complete the sentences and provide commas where necessary.
Society for Science and the Public
Science News for Students: Like Poison for Phosphorus
Discusses a research study undertaken at Mono Lake in California, known for its extreme salty conditions, which supports unusual life forms. Scientists found that a bacterium could survive using arsenic instead of phosphorus,...
Sophia Learning
Sophia: Essential Elements: Lesson 3
This lesson will introduce the 4 elements that make up most of the body: Oxygen, Nitrogen, Carbon, and Hydrogen. It is 3 of 4 in the series titled "Essential Elements."