Hopkins University Science Day
Last summer, we had Smarty take a test through Talent Search program from Center for Talented Youth at Hopkins University. She passed it with “high honors” and qualified for both math and language programs with Hopkins online classes for talented youth. We haven’t taken any online classes through Hopkins yet, because they are so ridiculously expensive, but CTY also runs Family Academic Programs that people can register for even without Hopkins qualifications. We registered to participate in a (relatively) local program at Berkeley Lawrence Hall of Science as a gift for Smarty’s 9th birthday. She was thrilled with this gift and couldn’t wait for her science day to arrive. The program included 3 different workshops – Amazing Brains, Fantastic Gases, and Who Done It? It also included a 3D movie about flying dinosaurs and access to Berkeley Hall of Science museum with their amazing Design Quest.
After about 45 minutes of free experimenting with their dry ice, students discussed their findings. They agreed that dry ice did not “melt” into liquid, and their instructor explained that this process is called sublimation. They also discovered that dry ice is heavier than air after almost every student thought of filling a balloon with sublimated dry ice. Then the instructor led them through comparison of dry ice with several other gases (hydrogen, oxygen, and carbon dioxide) by testing different properties such as weight, flammability (not for oxygen, of course, but he demonstrated a spectacular fiery explosion of a hydrogen-filled balloon that kids asked to repeat twice), and acidity. In the end of the workshop, students agreed that mysterious dry ice is indeed good old CO2 (or at least it behaves suspiciously similar to it).
More Dry Ice ExperimentsNow when I know how dry ice works, I am more comfortable getting some for experiments at home. Here are some cool ideas for dry ice:
- Dry Ice Bubbles from Not Just Cute
- Dry Ice Rocket from Frogs, Snails and Puppy Dog Tails
- Magic Bubbling Potion from Science Kiddo
More States of Matter with KidsFrom my blog:
Follow my States of Matter Pinterest board