This is a lab bundle that follows the format of the Washington State End of Course Assessment for Inquiry Design. This can be used in any state classroom for an inquiry design lab.
The students will begin by reading a lab that was already performed with procedures written and data recorded in the data table. This will be on the following:
How does different temperatures of water affect the volume of a gummy bear that soaks over night?
They will examine the procedures and data, then write a conclusion for the data.
The guided PowerPoint will guide them through the following:
*Break down the procedures to understand the different variables and steps in writing procedures.
*Guide them in identifying the manipulated, responding, and controlled variables when reading the procedures.
*Help them analyze the data
*Scaffold writing the conclusion using the data
The students will then be given a different scenario and a new experimental question.
How does different concentrations of salt water affect the volume of a gummy bear when soaking over night?
Using the guided PowerPoint, the students will be able to:
*Write a hypothesis
*Identify the manipulated, responding and controlled variables, and a validity measure
*Write procedures for the experiment
* Create a data table for the experiment
*Perform the experiment and collect data
* Write a conclusion using the data
*Learn the concepts of diffusion and osmosis through the gummy bear lab
Note : If the teacher wants to run the lab, they will need the following materials.
1. 12 gummy bears per group of the same color ( or you can split this up and give 3 different groups 4 of the same color gummy bears and they each perform one trial and share their data)
2. 12 plastic cups or beakers that hold 75 mL of water per group or if you are splitting up the trials, 4 per group.
3. Graduated Cylinders for each group
4. Salt solutions of 2%, 4% and 6% (2% solution = 20 grams of salt per 1000 mL of water 4% = 40 grams and 6%= 60 grams)