Mrs. Bradley's Grade 2
The Grade 2 classes have started their Boats and Buoyancy unit in Science. And what a start it has been! We started the week testing items to see if they could float or sink. We made predictions and then we started testing our items and recording our observations. There were a number of surprises when some items floated when students thought they would sink! After discovered which items floated and which items sank, the next step was to learn why. We watched a Bill Nye the Science Guy video to learn all about Buoyancy. As always, Bill Nye explains things in way that is easy to understand, funny, and entertaining! Once we understood that items that were buoyant could float, we moved onto a Design Challenge. Students were given a ball of plasticine and had to create an object that sunk and an object that floated. Students quickly realized the Design Challenge was harder than it looked. Making plasticine sink was easy, but getting it to float took some careful focus and finger work. We applied our building skills one more time with another Design Challenge using tin foil. Students were asked to do the same task, design an object that could float and an object that could sink but using tin foil. This time, the tricky part was an object that could sink! Here are some of the designs students tried: Random fact from Grade 2: When you have 24 students with their hands in tubs of water, you use 2 Costco sized rolls of Bounty Paper towels in 3 days! If anyone would like to donate a roll of paper towels to our classroom, we would appreciate it.
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AuthorMrs. Bradley's class is made up of 24 students from Dr. Roberta Bondar School. Archives
June 2018
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