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Activity 5.3: Tracing the Process of Potatoes Growing: Biosynthesis (40 min)

Activity 5.3: Tracing the Process of Potatoes Growing: Biosynthesis (40 min)

Materials You Provide

Resources Provided

Setup

Print one copy of the Potato 11 x 17 Poster, and gather 5 pennies and 1 nickel for every pair of students. Print and cut apart 5.3 Soil Minerals for Tracing the Process of Potatoes Growing. Print one copy of the a href="http://media.bscs.org/carbontime/plants/worksheets_assessments/5.3_Tracing_Atoms_and_Energy_in_Plants.pdf" target="_blank">5.3 Tracing Atoms and Energy in Plants Worksheet for each student. Prepare a computer and a projector to display the PPT and video. Print and hang the Digestion and Biosynthesis 11 x 17 Posters, and the Metabolic Pathways Poster.

Directions

1. Have students start to think about how plants grow.

Tell students that in today’s activity we will use molecular modeling to think about how plants grow through biosynthesis.

  • Open 5.3 Tracing the Process of Plants Growing: Biosynthesis PPT.

Assessment

  • Matter tracing: note if students are able to recognize that the same atoms that were in the reactants are also in the products.
  • Energy tracing: note the ways that students explain how chemical energy is conserved through both digestion and biosynthesis.

Tips

  • During the tracing activity and animation, focus on how matter and energy are conserved through the chemical change. This is the main goal of the activity!

Extending the Learning

  • Have students research the role of nitrogen in plants for homework and share what they learn. Ask: How do plants and animals obtain and use nitrogen differently?