• Hello !
    Welcome to my homepage.
    hangin' at the caldera
    Teacher: Katie Cohen
    Classes: 8th Grade Science 
    Room: C-16
    Email Address: kecohen@opusd.org 
    Instagram: @mscohenscience
    • Reusable Straws: Here is the link to the where I bought my reusable straws. Save the planet, one straw at a time! https://finpinshop.com/ 
    • Here is the link with the info about Earth Echo International, the fabulous organization I work with for environmental conservation education. If you're interested in working with them too, let me know!  http://earthecho.org/
    I NEED YOUR HELP! Garden club is working on a succulent project and we are in need of cuttings from a wide variety of plants for our pallet planter (see below). We need them for 12/12/18
     Our succulent pallet goal!
    Cuttings means breaking off leaves from the succulent plants and leaving them to dry for 3 days until they form a callus. The rest of the project will be done in school with the garden club (you're always welcome to join us at lunch on Wednesdays in my room!!)
    To bring them in, you can just gently roll the dried and callused leaves/rosettes/stems up into the paper towel you dried it on, put it into a ziploc baggie, and bring them into me. If you happen to know the name of the plant type, please label it for us too.
    Here are some videos to help you figure how how to make the cuttings.
    In video 1, (general info) watch from 0:45s-1:20 (you don't need to cut of fthe whole top of the succulent, you can just)- https://www.youtube.com/watch?v=Q2mecDHIaS0&feature=youtu.be
    Video 2- for rosette style succulants (you don't have to cut off the whole rosette, you can just pull a few leaves off): https://www.youtube.com/watch?v=E5gpavnCfLw 
    Video 3: Crassula stem cuttings (from 0:55-2:25) and Sedum leaf cuttings  (from 6:02- 6:45)  https://www.youtube.com/watch?v=E5gpavnCfLw

    Hello and welcome to my Science Lab web page!

     Be sure to check out the homework page to keep up with your daily assignments.

     If you'd like to see high resolution photos that the OPHS rocket team took during the eclipse, click here:  https://drive.google.com/drive/folders/0B7OH9r7W0yPDRm0waUNlemRaZmM