Crystals and Polymers
- Grades 5-6
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
- 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
Summer Dates & Locations
Testing and Prerequisites
|Required Level||CTY-Level||Not required|
Students must achieve qualifying scores on an advanced assessment to be eligible for CTY programs. If you don’t have qualifying scores, you have several different testing options. We’ll help you find the right option for your situation.Sign up for Testing Learn More
Cost and Financial Aid
- Nonrefundable Application Fee - $50 (Waived for financial aid applicants)
- Nonrefundable International Fee - $250 (outside US only)
We have concluded our financial aid application review process for 2023 On-Campus Summer Programs. We encourage those who may need assistance in the future to apply for aid as early as possible.
Please acquire all course materials by the course start date. If you have questions about these materials or difficulty locating them, please contact firstname.lastname@example.org.
Course Extras (Lab fee info, etc): Lab fee: $135
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, by Mickey Sarquis and Linda Woodward
About Science and Engineering at CTY
Explore space and our planet
In our Introduction to Astronomy course, we’ll visit a nearby observatory or planetarium, see what the cosmos looks like through various spectra, and immerse ourselves in the science and technology that bring the universe closer to home. In Marine Ecology, we’ll visit local wetlands and tidepools, observe flora and fauna, collect water samples and analyze them for clues about their health and humans’ impact. And in The Global Environment, we will explore the human impact on our environment and generate proposals for addressing climate change.
Bond over chemistry
Our chemistry courses help you see the world differently, starting at the atomic level. The Edible World gives budding chefs and science lovers a glimpse into the chemical reactions that happen when we make food, and the chemical makeup of meals and treats we eat every day. In our Crystals and Polymers course, we’ll synthesize slime, grow rock candy, and isolate strawberry DNA to learn about the molecular structure of naturally occurring gems and human-produced plastics. In Chemistry in Society, we’ll consider how the chemicals in products can both enhance and degrade the world around us; produce biodiesel in a lab to understand alternative fuels; and prepare aspirin to learn about the healing and toxic properties of pharmaceuticals.