Courses

Crystals and Polymers

All Dates and Tuition
Modality
In Person
Identification Level
Quantitative - CTY-Level
Tuition
$6,717 - $7,549

About the Course

Why do some plastic containers melt in the microwave while others don't? What makes Silly Putty stretchy? How are packing peanuts made? Chemicals are key to answering these questions, and in this course, you'll examine how their structure can determine the properties and behaviors of gems and polymers. Starting with the most basic building blocks, atoms, you'll learn about ions and compounds, and grow crystals like salt and rock candy in the lab, marveling at how small changes in structures of gems can cause dramatic changes in shapes and colors. You'll also synthesize slime or Silly Putty to investigate molecular chain length and cross-linking, isolate strawberry DNA and denature proteins to learn about biopolymers, and experiment with superabsorbent molecules like those used in diapers to research how different plastics are synthesized. By the end of the course, you'll understand the chemistry behind many materials we use every day.

Typical Class Size: 14-16

Learning Objectives

  • Test and classify the structure and morphology of crystalline polymers
  • Experiment on crystallization of shapes and colors, and defend the crystallization process
  • Measure densities, rigidity, flammability, and surfaces of polymers
  • Investigate polymer chain structure, chain memory, and transition temperatures using molecular models
  • Illustrate a semi-permeable membrane and design tests for permeability through experiments
  • Analyze elements and atoms of carbohydrates in both crystals and polymers
  • Synthesize proteins and amino acids through lab activities and experiment to find what makes proteins more or less soluble

About Advanced Enrichment courses

These courses offer above-grade-level material that is presented in a novel context, explored with other advanced learners, and guided by a CTY educator to help prepare students for higher-order thinking and college-style academic challenges. Students work individually and may finish the course early if they complete all requirements before the course end date.

Requirements

CTY courses have grade-level requirements and most require minimum test scores. Some courses may also have prerequisites.

Identification Details
Grade 5–6
Identification Level
Quantitative - CTY-Level
Coursework Prerequisites None

Dates and Tuition

All CTY courses require you to create an account and confirm Identification Level before enrolling can be completed.

In Person

Map icon

Ursinus College

Collegeville, PA
Residential Site icon Residential Site
Summer A 2026
Jun 28, 2026 - Jul 17, 2026
$7,549 Residential
$6,717 Commuter

You will be asked to join or sign in first.

Register by:

Register by: June 21, 2026

Time Commitment:

Time Commitment:

Important Information

This course has a lab fee of $187.

Course Materials
Students should bring basic school supplies like pens, notebooks, and folders to their summer program. You will be notified of any additional items needed before the course begins. All other materials will be provided by CTY.

Sample Reading
These titles have been featured in past sessions of the course and may be included this summer. CTY provides students with all texts; no purchase is required.

Eyewitness: Crystal & Gem, by R.F. Symes and Richard Harding
Polymers All Around You, Mickey Sarquis and Linda Woodward

Summer B 2026
Jul 19, 2026 - Aug 7, 2026
$7,549 Residential
$6,717 Commuter

You will be asked to join or sign in first.

Register by:

Register by: June 8, 2026

Time Commitment:

Time Commitment:

Important Information

This course has a lab fee of $187.

Course Materials
Students should bring basic school supplies like pens, notebooks, and folders to their summer program. You will be notified of any additional items needed before the course begins. All other materials will be provided by CTY.

Sample Reading
These titles have been featured in past sessions of the course and may be included this summer. CTY provides students with all texts; no purchase is required.

Eyewitness: Crystal & Gem, by R.F. Symes and Richard Harding
Polymers All Around You, Mickey Sarquis and Linda Woodward

Registration Fee and Financial Aid

Tuition and fees will be waived or reduced for students who qualify for financial aid.

Learn more about Financial Aid
Join Fee $55

If you are not a member of CTY yet, you are required to join before enrolling in a course.

Join CTY
In-Person registration fee $75

Non-refundable fee for in-person courses.

Online Registration Fee $15-$20

Non-refundable fee for online courses.

Science and Engineering

Conduct experiments, design projects, test your ideas, collaborate with peers, and solve problems, with guidance from your instructor every step of the way. 

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