As part of our studies on cells and the human body students are learning about the concepts of diffusion and osmosis to study the respiration of human cells and more.  To learn the basic vocabulary for this topic click the link below for quizlet.com

https://quizlet.com/_38ty26?x=1jqt&i=wonru

We will also be watching a video in class (it was shared on the “General” channel on Teams) and taking notes as a class to learn of the basic concepts we need to know.

Then: We are working on a gummy bear lab to see diffusion at it’s best.  Check out all the materials below for our lab.  Note: students are filling out their worksheets association with the lab but they will also be doing a formal lab write-up which follows the 20.09.16 LAB REPORT TEMPLATE – good one and which should be the first paper in the Science section of their binder.

20.10.20 gummi bear lab 18.11.06 Gummy Bear Lab2

WHAT YOU ARE TO HAND IN FOR THIS ASSIGNMENT: Students are to hand in several items for this assignment.  Please have them stapled together in this order.

1. Notes on Diffusion taken in class when watching the video (shared in class and on Teams)
2. The “Tea Bag Diffusion” sheet we did in class whilst working with the powerpoint (also posted on Teams)
3. The vocabulary sheet given out in class (the quizlet one)
4. The Gummy Bear Lab results recording sheets (you don’t have to fill out the explanations, only the tables)
5. One Formal Lab that closely follows the steps outlined in your formal lab template (handedo ut at the beginning of the school year and should be in the very front of the Science section of your binder)

Here is the “procedure” of the lab.  In the “procedure” section of the lab you can just write “see Mr. Ewert’s Blog from Nov 14,2022 for the procedure”.

Procedure: we’re going to measure our gummy bears with a ruler to measure their height and width. Then we will measure their mass by using a digital scale. We will put the bears into our cup of water for 24 hours. Then we will take the bears out to measure their height, with, and mass again.

when we are finished measuring the bears on the two we will add 35 grams of salt to the water, which will increase the overall density of the water, and then leave the bears for another 24 hours.