Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Email [email protected]

Have you ever wondered why the Earth’s atmosphere is sometimes referred to as an “ocean of air”? Should the word ocean be used to describe a gas? Could this ocean of air also be the specific cause of structures and functions of various species? Test your students’ powers of observation and deduction by doing this inexpensive exercise.


  • Pressure
  • Gases
  • Observations