The Experiment occurred on January 24, 2011. Float, Sink or??? Observation Experiment. It was a fun experiment that included using three beakers and figuring out what liquid was inside each beaker. Beaker A contained water. Beaker B contained rubbing alcohol. Beaker C contained oil. We had to see if the slate, cork, pine would float or sink in these liquids. It was a fun experiment that included answering questions. See more information about the experiment under class 3.
This experiment will be successful if first guided by the teacher. It is important for the students to have teacher guidance. It is important for the teacher to show the three beakers and ask the students to write down their observations. This way the students can show off their observation skills while using some of their five senses like smell, sight,and feel. It is important for students to also coporate with a group of two or three other students to see what observations the students made about the beaker's liquid. Then it is important to for the teacher to have enough of the three liquids for the number of groups in the class. The three liquids and the cork, pine, and wood should be placed at each groups table. Students make predictions about whether the cork, pine, and wood will float or sink. The students then will answer questions and write in their science journal about what the students did during the experiment and liked about the experiment. This how the experiment is successful.
There are many ways to use this experiment in the classroom. This experiment should be first be shown by the teacher at the front of the classroom with the three beakers filled with liquid and students writing down their observations. Then a set of beakers for each liquid should be placed in front the students. The teacher should tell the students to read the directions and explain that the three objects the cork, the pine, and the wood are to be placed in the liquid to see which one floats or sinks. It is a good thing for the teacher to walk around the room and to see how the students are doing. The teacher should come to each group to ask questions and to make sure that the students are on track with their experiment. The teacher should serve as a facilitator but should let the students do the experiment on their own and be there to help the students if the students are struggling with the experiment.
If the teacher does not feel that the students can handle the experiment of Float or Sink then the teacher should just do the experiment as a demonstration.
I like that this experiment is a good way for students to work in groups. It is a great way to see if the students can use the information about density to help them with doing the experiment. This is a great hands on experiment. I like how the experiment can have students work together and solve the problem of how to put the liquid in and this experiment can also give jobs to students. Like one student in the group is the recorder, another student measures the length of the object and how much the object says a float, and the third students puts the object in each beaker. These jobs can be changed for each beaker. This a great experiment for students to see what objects float and sink and to learn about density.
Reaction to the Float, Sink , or??? Experiment:
I think that the Float, Sink, Or activity was really fun. I think that I would use this activity in my class. I would have students work in groups of three or four. It is an interesting experiment. I would do whole class observations and mini group of three or four observations .
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