The lesson discusses the science and chemistry of the human body. Most students are aware of the basic “ingredients” of the human body, but may not realize the numerous elements that are part of it. The lesson also discusses their usefulness to the body, and what might happen to the body without some of the chemicals. Students should have some prior knowledge about chemistry before this lesson is used. Several interactive websites and age appropriate videos are included with the lesson. The lesson can be used in conjunction with lessons related to the human body or other chemistry lessons.
Sample Classroom Procedure / Teacher Instruction:
- Ask students: How much do you think your body is worth in dollars?
- Allow for responses and discussion. Additionally, ask why they believe it is worth that amount.
- Allow for responses and discussion. Ask students if they believe it is possible to “build” a human body by purchasing and using the available chemicals. Why or why not?
- Allow for responses and discussion. Introduce Chemistry of the Body.
- Distribute Chemistry of the Body content pages. Read and review the information with the students. Save the final question for the lesson closing. Use the additional resources to enhance understanding.
- Distribute Activity page. Read and review the instructions. Review the use of scale and proportion with students. (It is recommended teachers create larger outline images of the body, distribute construction paper, or use other large sheets of paper. The larger the paper, the easier it will be for students to label the elements.) Tell students they do not necessarily need to shade using layers of colors. However, they must label each color, or may use a key to show which color represents each chemical. Distribute colored pencils. Allow sufficient time for completion.
- Once completed, students share the colored images of the body. Allow some students to recite the amounts of each chemical. You may also ask students to tell what each chemical does for the body.
- Distribute Practice page. Check and review the students’ responses.
- Distribute the Homework page. Read aloud a sample recipe. Encourage students to use their imagination. The next day, ask students to correct false statements and share “recipes”.
- In closing, ask students: The top 4 elements of the human body are oxygen, carbon, hydrogen, and nitrogen. Create a method of remembering the four elements in order from must to least.
Common Core State Standards:
CSS.ELA-Literacy.RI.4.2, CCSS.ELA-Literacy.RI.4.3, CCSS.ELA-Literacy.RI.4.4, CCSS.ELA-Literacy.RI.5.2, CCSS.ELA-Literacy.RI.5.3, CCSS.ELA-Literacy.RI.5.4, CCSS.ELA-Literacy.RST.6.2, CCSS.ELA-Literacy.RST.6.4, CCSS.ELA-Literacy.RST.6.7
Class Sessions (45 minutes): At least 2 class sessions
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