Cellular Respiration BTB (Amanda Hrezo)

Author

Amanda Hrezo

Principle(s) Illustrated

Acidity
Cellular Respiration
Photosynthesis
Carbon Cycle
Ocean acidification

Standards

NGSS Science & engineering standards
- Asking questions
- develop and using models
NGSS Cross-cutting concept standards
- Cause and effect
- systems and system models
- energy and matter
- stability and change
NGSS Disciplinary core idea standards
- From molecules to organisms (HS-LS1)
- ecosystems: Interactions, energy and dynamics (HS-LS2)
- Earth and human activity (HS-ESS3)
- Matter and Its Interactions (HS-PS 1)

Questioning Script

Prior knowledge & experience:

Students know human breath out CO₂ but they do not understand why and do not understand why the solution changes color due to just breathing in the solution. Students not see our breath have something that can cause a change.

Root question:

What is happening to the solution that causes it to change color? Why is that coming out of our bodies?

Target response:

CO₂from the teachers breath is going into the solution and turning the solution acidic. The CO₂comes from your body because your body is going through cellular respiration.

Common Misconceptions:

Humans exhale oxygen

We breath out air