Chemapalooza @ Aurora – Friday: So Sublime
Today students observed first-hand how regular ice and dry ice differ in their behaviors. Students studied both types of ice in one scenario, and used their observations to predict what would happen in a different scenario! Finally, collected evidence to make claims about the strange phase-changing properties of dry ice, created models, and presented them to the group.
Ask your student: What is it called when a substance goes from a solid straight to a gas? (Sublimation) Ask your student to tell you some of the differences they observed between dry and regular ice.
Chemapalooza @ Aurora – Thursday: Ooey Gooey Toy Company
Silly slime and smiling faces! Students became Chemical Polymer Interns for Ooey Gooey Toy Company today. While creating their own Play Doh, Putty, Slime, and Oobleck substances, our interns learned about polymers and heterogeneous mixtures. They used that knowledge to make a new toy for the company, a bouncy ball, by using the ingredients from the previous slimes.
Ask your student: What type of substance is Play Doh? (Suspension) What kind of molecules are in Putty and Goo? (Polymers) What substance gives Goo its sliminess? (Borax)
Chemapalooza @ Aurora – Wednesday: Water Beads and Diffusion
Today, in Chemapalooza, the students investigated the nature of water beads. Our little chemists used the scientific method to design their own experiment and create a hypothesis on how they predict different liquids or different concentrations of liquids would have an impact on the growth-size of water beads. As the week progresses, the students will continue to work through the experiment and analyze their results and ultimately evaluate their hypothesis.
Ask your student:
What is osmosis? (Osmosis is a special type of diffusion- movement of water across a barrier form high to low concentration)
What is an independent variable? (An independent variable is the variable you are testing in an experiment: it is the variable that is changed)
Chemapalooza @ Aurora – Tuesday: Magic Messages
Today, students became chemical investigators to discover the concepts of pH and acids/bases.Our junior chemical scientists observed color changes during reactions using common household materials. Students also wrote invisible messages to friends!
Ask your student: What are examples of acidic liquids? What are examples of basic liquids? (Acidic: tomato juice, acid rain, battery fluid; Basic: milk, eggs, soapy water)
Chemapalooza @ Aurora – Monday: Molecular Gastronomy
Today students trained to become a budding chef in an emerging culinary style known as Molecular Gastronomy. Exploring how science and art can mix, students used the scientific principles of Molecular Gastronomy to create visually appealing and texturally unique foods, and explored two foodie experiments. By the end of the lesson, students became quite knowledgeable in the growing field!
Ask your student:
What is the process of thickening a liquid so it doesn’t melt in its new solid form? (Gelification)
What is the process of creating gelified pearls? (Spherification)