Molecular Models and Assignment Criteria

This video tutorial introduces the marshmallow molecules assignment, which addresses the MSPS11 standard. Students are tasked with finding three compounds from household products, including a polymer, and creating models using marshmallows and toothpicks. The assignment involves researching the compounds' uses, chemical formulas, and molecular structures. Students must submit photos of their models and complete additional slides for polymers. The video also outlines the assessment rubric, detailing how students can achieve proficiency or exceed standards by creating accurate and clear models and applying them to real-world situations.

What is the main objective of the Marshmallow Molecules Assignment?

• To develop models of atomic composition

• To create edible marshmallow snacks

• To learn about nutrition labels

• To practice cooking skills

Which type of product is NOT mentioned as a source for finding compounds?

• Electronic device

• Hair or cosmetic product

• Hygiene product

• Snack or drink

What is the minimum requirement for the types of compounds you need to model?

• All must be simple molecules

• All must be polymers

• At least one must be a polymer

• At least two must be polymers

What should you research about each compound before building the model?

• Its taste and color

• Its use, chemical formula, and molecular structure

• Its price and availability

• Its brand and packaging

What materials are used to build the molecular models?

• Plastic and metal

• Paper and glue

• Marshmallows and toothpicks

• Clay and sticks

What must be included in the submission of the assignment?

• A written essay about the compounds

• Photos of each model with labeled atoms

• A video of the building process

• A presentation to the class

What is required to score a three on the assignment?

• Models must be colorful

• Models must accurately represent molecular structure

• Models must be made of edible materials

• Models must be larger than life-size

How can you exceed the standard and score a four?

• By creating more than three models

• By making models visually clear and applying them to real-world situations

• By using expensive materials

• By presenting the models in a public exhibition

What additional task is required for the polymer compound?

• Complete an additional slide

• Conduct a live demonstration

• Create a video tutorial

• Write a detailed report

What should be demonstrated using the models according to the assessment criteria?

• The models' ability to float in water

• The models' artistic value

• The models' durability

• The differences between simple molecules and extended structures