Rockets, Bubbles and Explosions Engage Elementary Students at G5 Chemistry Fair

Grade 5 science students were asked to combine two or more substances to make a chemical reaction. They could choose their own experiments, explore and go through the scientific method of question, hypothesis, procedure, materials, observation and conclusion. 

Working in pairs, Grade 5 hosted a Chemistry Fair for all elementary school students, to demonstrate and explain their experiments.

The Bolt spoke to some of our Grade 5 chemists to learn about their experiments. 

Logan and Otto shared, “We worked on dry ice bubbles - our goal was to make the bubbles fly. We had a box and we put hot water and dry ice together and made a gas. Then we put an outside hose to create bubbles. We learned that dry ice can make many cool things, and when dry ice evaporates, it can create carbonated bubbles.” 

Jun and Christian said, “We built a rocket using a canister, water, and dissolvable medicine tablets. We filled the canister exactly ¼ full of water, added the tablets and then put the canister upside down. We researched different measurements of water and found that too much water will not allow it to fly, and less water would cause the rocket to soar over the roof. The tablets soaked into the water and created air pressure and CO2, and when the pressure gets too much it causes the canister to fly up.

Ethan and Dominic related, “Our project also made carbonated bubbles using dry ice, water and hose, but our goal was to make the bubbles green. We didn't expect that the bubbles would only be green on the bottom. We mixed water, citric acid and sodium together. Doing so caused a little explosion, and the liquid mixture also got cold.”

Akari and Cayetana shared, “What happens is the chemical compound created by combining these three elements absorbs all the hot air around it, and that is why our mixture becomes cold.” 

Learn more about Concordia’s Elementary school science program here.