Teachers, save “Weathering: Evidence Found in Shells” to assign it to your class.

1. Look at the classroom set of shells. 2. Most pairs of shells has one shell in its original condition, and one that is showing signs weathering. 3. Select five sets of shells and take a of each set. 4. Place a on its own slide in your Seesaw project. 5. Provide the evidence that weathering has occurred by using the . Look for: • color (bright/faded) • edge conditions (sharp/rounded) • spike conditions (sharp/rounded) • spike/length of shell (long/tall/shorter) • texture (ridges visible/ridges not visible) • details visible/details not visible) • etc. background source: <a href='https://www.freepik.com/photos/background'>Background photo created by snowing - www.freepik.com</a>