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Solids, Liquids, and Gasses in Balloons
Submitted by Jillian in Egg Harbor, Jew Jersey
3rd Grade Teacher
Solids, Liquids and Gases. After introducing each of these concepts to the students we do an experiment that helps the students visualize a solid, a liquid and a gas. You will need a total of 12 balloons.
Before the experiment, you will need to fill up eight balloons with water and four balloons with air. Then out of the eight balloons you filled with water, four of them you will need to freeze. Once the four balloons freeze they will be your solid balloons, the other four balloons filled with water will be your liquid balloons and the last four filled with air will be your gas balloons.
Once you have all of the balloons ready for the experiment, place a solid balloon, a liquid balloon and a gas balloon in a deep tub, repeat with the rest of the balloons. I have 20 students in my class. I break the groups into five students per group and give each group a tub (totaling four tubs) with the three types of balloons.
Once all groups have their tubs with balloons they are handed a sheet to write down their predictions about each balloon. On the sheet each balloon has three boxes to fill out. The first box for the students to fill out is about what each balloon looks/feels like. The second box the students write a prediction about what will happen to the contents inside the balloon when we pop it. The last box about each balloon is about what happened when we popped the balloon.
Have the students record their observations and predictions about each balloon. Then share observations and predictions as a class. Finally, pop each balloon and see what happens! The soild stays the same, tightly packed, the liquid should take form of the tub, and the air should vanish and spread throughout. The students get very excited when it's time to pop the balloons. This is a great experiment for students to really get a hands-on experience with solids, liquids and gases. Have Fun!