7th Grade Honors Science

What was done?

1. Mr. Kang was absent. Students worked on the "What are Joints?" Worksheet.
2. Students took notes on the Eyewitness: Skeleton video.
   

What was collected?

1. The answers to the Joints worksheet.
   

What was assigned?

1. Completion of the video notes.
   

Daily Science Fact
A submarine (or a space ship, for that matter) is a sealed container that contains people and a limited supply of air. There are three things that must happen in order to keep air in a submarine breathable: (1) Oxygen has to be replenished as it is consumed. If the percentage of oxygen in the air falls too low, a person suffocates. (2) Carbon dioxide must be removed from the air. As the concentration of carbon dioxide rises, it becomes a toxin. (3) The moisture that we exhale in our breath must be removed.