In this lab, students will:

  • Create a mixture and make observations about its properties as its state of matter changes
  • Learn techniques to micropipette and measure small quantities of liquids
  • Discover and identify elements in the hemlock ecosystem, including the geosphere, biosphere, hydrosphere, and atmosphere
  • Perform gel electrophoresis to compare DNA from known pests to an unknown tree killer (scientists use this method to separate out parts of a mixture)
  • Discuss possible solutions communities can use to stop the unknown tree killer and save the hemlock ecosystem

Standards:

  • 5-PS1-3. Make observations and measurements to identify materials based on their properties.
  • 5-PS1-4. Conduct an investigation to determine whether the mixing of two or more substances results in new substances.
  • 5-LS2-1. Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment.
  • 5-ESS2-1. Develop a model using an example to describe ways the geosphere, biosphere, hydrosphere, and/or atmosphere interact.
  • 5-ESS3-1. Evaluate potential solutions to problems that individual communities face in protecting the Earth’s resources and environment.

Typical Schedule*:

9:00 – 9:15 Arrive/walk to the lab
9:30 Start lab (up to 64 students**)
11:30 – 12:00 End lab

*Schedule can be adjusted to meet your school’s needs
**If you have more than 64 students, see large group schedule

Typical Large Group Schedule*:

9:00 – 9:15 Arrive/walk to the lab
9:15 – 11:15 Lab for A group** (up to 64 students)
11:15 – 12:15 Switch groups
12:15 – 2:15 Lab for B group*** (up to 64 students)
2:15 Depart

*Schedule can be adjusted to meet your school’s needs
**B group participates in another campus activity; school chaperones arrange
***A group participates in another campus activity; school chaperones arrange