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Want to engage your students in learning about the universe? This activity works great as an introductory or "Engagement" piece, or as an "Explore" to your Big Bang Unit.
Students use an expanding balloon to observe how the distance increases for "galaxies" that are farther away. Most items can be found in your classroom or bought inexpensively. Includes graphing and data table practice to future hone those scientific skills!
This activity directly correlates with Next Generation Science Standards, specifically HS-ESS1-2: Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.
Can be used with middle or high school Earth Science classes! Activity takes about 90 minutes - 2 hours, depending on how much time you allow students to work (balloon portion can be done in class, with graphing and questions answered for homework). Students may require some modeling of how to take measurements (I do walk my students through how to measure for "TIME 1" to make sure students are measuring correctly).