MYTHconceptions 7-26: Balloons
Today, in MYTHconceptions, the students were challenged to puncture a balloon without popping it. Students explored properties of rubber to figure out how to pierce a balloon with a wooden skewer without popping it. Through this activity students use their deductive skills to figure out what needs to be done to keep the balloon intact.
Ask your student: What is a polymer? (A Polymer is a chain of repeating parts) What property of the balloon (rubber) allowed it to be stretchy and always go back to the original form? (elasticity, elastic)
Belleville STEMvironment 7/26: Solar Power!
In class today, students learned how to apply the principles of solar energy, and how to run good tests of their solar device. Students created a solar oven that harnessed the power of the sun’s light to heat and cook marshmallows! By collecting data of their ovens’ temperature and then graphing it, students were able to compare their ovens, and discover some of the principles behind solar heating.
Ask your student: What happened to the temperature inside the oven? (It increased) What part of the oven kept the heat in? (The black paper) What part reflected the heat inside of the oven? (The foil, which acted as a mirror)
Chemapalooza 7-26: Orbeez Experiments
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)
Belleville Engineering Explorations 7/26: A Series of Circuitous Events
In this lesson, our engineers applied the knowledge they learned earlier in the week in a race to assemble two different types of circuits, parallel and series. Their creativity really lit up the room as they explored the difference between these two circuit types by powering LED lights in each of these styles.
Ask your student: What is the main difference between parallel and series circuits? (Only one path in a series circuit; parallel there are multiple paths) Which circuit style causes voltage drop? (series)
Fun Fact: Refrigerators, freezers, and water heaters use series circuits while electrical outlets in a room, house, or building use parallel circuits.
Belleville MicroSTEM 7-26: Ionic Compounds
Today, in MicroSTEM, the students built upon their knowledge of atoms and ions as they used their own bodies to represent atoms and ions that bond to form ionic compounds. The students played a game where they were challenged to find a partner “match” to create an ionic compound with a net charge of zero. Also, today in MicroSTEM, the students built simple ionic compounds and then created crystalline structures with the whole class.
Ask your students: To create a neutral ionic compound with a Sodium ion (+1 charge), what charge would the other ion have to be? (-1 charge)
Biomedical Engineering 7-26
To begin the day, students learned about and discussed examples of heart failure, both in the mechanical and electrical systems of the heart. Then, the class continued to build the large heart model, and began troubleshooting any issues that came up for the big heart. Students continued to work on their BristleBots, and began testing them today.
Ask your student: What are some examples of an electrical heart failure? What are examples of a mechanical heart failure? How does heart failure affect blood flow?