ALEX Classroom Resources

ALEX Classroom Resources  
   View Standards     Standard(s): [SC2015] PS8 (8) 3 :
3 ) Construct explanations based on evidence from investigations to differentiate among compounds, mixtures, and solutions.

a. Collect and analyze information to illustrate how synthetic materials (e.g., medicine, food additives, alternative fuels, plastics) are derived from natural resources and how they impact society.

Subject: Science (8)
Title: Natural Resources & Synthetic Materials
URL: https://www.middleschoolchemistry.com/lessonplans/chapter6/lesson12
Description:

In this lesson, the teacher models and describes the kinds of information students will be looking for in their research project on a synthetic product. This is done by using an example of a synthetic product that students make in the classroom: a gel worm (not for eating.) Students make it by combining a sodium alginate solution with a calcium chloride solution. The teacher uses this product to model answers to the three questions students need to answer in their research:

  1. What natural resources are used to make the synthetic product?
  2. What chemical processes are used to make the synthetic product?
  3. What are the negative and positive impacts to society of making and using the synthetic product, compared to making and using a more natural product with a similar function?

Students choose or are assigned a synthetic product to research. They investigate the product to answer the three questions. Students apply their learning to make an advertisement, poster, short video, or article about their synthetic product.

Students will be able to find and analyze information to describe that chemical processes are used to convert natural resources into synthetic materials and products. They will also be able to give examples of how the production of synthetic products has impacts, both positive and negative, on society.



   View Standards     Standard(s): [SC2015] PS8 (8) 3 :
3 ) Construct explanations based on evidence from investigations to differentiate among compounds, mixtures, and solutions.

a. Collect and analyze information to illustrate how synthetic materials (e.g., medicine, food additives, alternative fuels, plastics) are derived from natural resources and how they impact society.

Subject: Science (8)
Title: Mixtures StudyJam
URL: https://studyjams.scholastic.com/studyjams/jams/science/matter/mixtures.htm
Description:

A mixture contains two or more substances that retain all their original properties and can be physically separated. Mixtures can be homogenous or heterogeneous.

The classroom resource provides a video that will describe the two types of mixtures. There is also a short test that can be used to assess students' understanding.



   View Standards     Standard(s): [SC2015] PS8 (8) 3 :
3 ) Construct explanations based on evidence from investigations to differentiate among compounds, mixtures, and solutions.

a. Collect and analyze information to illustrate how synthetic materials (e.g., medicine, food additives, alternative fuels, plastics) are derived from natural resources and how they impact society.

Subject: Science (8)
Title: Elements and Compounds StudyJam
URL: https://studyjams.scholastic.com/studyjams/jams/science/matter/elements-and-compounds.htm
Description:

An element is as simple as it gets: substances that cannot be broken down into simpler substances. When elements get together and mix chemically, they make compounds, like water and salt!

The classroom resource provides a video that will describe the difference between elements and mixtures. There is also a short test that can be used to assess students' understanding.



   View Standards     Standard(s): [SC2015] PS8 (8) 3 :
3 ) Construct explanations based on evidence from investigations to differentiate among compounds, mixtures, and solutions.

a. Collect and analyze information to illustrate how synthetic materials (e.g., medicine, food additives, alternative fuels, plastics) are derived from natural resources and how they impact society.

Subject: Science (8)
Title: The Acid Test
URL: http://sciencenetlinks.com/lessons/the-acid-test/
Description:

In this activity, students will prepare a test solution whose color changes when an acid or a base is added; determine whether various household substances are acids or bases and look for patterns in the results; determine how their test solution compares to commercial acid-base testers; and search for other test solutions.



ALEX Classroom Resources: 4

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