Everyone's favorite part of the chemistry unit is Slime Week. This week, we made a new slime in middle school every day.
We started out with a super absorbent polymer called sodium polyacrylate. It can absorb up to 300 times its own weight in water!
On day 2 of Slime Week, we demonstrated a chemical reaction and the formation of a polymer with the classic borax and glue recipe, but we added shaving cream to make if fluffy and fragrant.
Next was our only edible slime--instant pudding! The chemical reaction that allows instant pudding to thicken is similar to the reaction that makes cement harden.
We ended Slime Week with Oobleck, the classic corn starch and water slime. It is a non-newtonian fluid, which means that sometimes it acts like a liquid, and sometimes it acts like a solid, depending on how you handle it. The students kept testing this slime in creative ways to see what it could do.
To wrap up our study of solving equations, we were greeted by the Equation Queen. She would let students know if their visual representation, steps in solving, and solutions were correct. Students worked incredibly hard to present their work to the Equation Queen! They worked well in partnerships, helping each other to understand and learn.
In class, we will continue to study chemistry until the end of the trimester, which is March 10. Our work in class will cover most topics that might appear in the local contest, but interested students should also use the provided study materials, which can be found at this link or by asking Mrs. Bebell.
All life on planet Earth relies on one particular substance... water! Grade 8 is learning about how the use of water helped shape the life that formed around the ancient city of Rome. Engineering feats that still exist 2000 years after they were created, such as the baths, aqueducts and fountains are clear indicators of just how important water was to helping bring about the explosive growth of Rome. Students seem particularly interested in the Roman obsession with bathing, and cleanliness.
http://www.visualpatterns.org. They were able to discover how the pattern continued, make a table with these values, and graph the data. The 8th grade students were able to create a linear function, as well. Great teamwork ensued in this process, along with the great thinking!
Linear functions, watch out! The 8th grade students are getting very close to being able to find the equation from a line, as well as graph the equation. Slope and y-intercepts have been on their minds, for sure. We even heard a musical approach to this! Check it out below.
1-10 of 30