Weekly Blog What We Learned.

Here is my Variable Science Experiment Picture:










Summary: This week, my class discussed variables. Some of these 'variables' are the Manipulated (Independent), the Responding (Dependent) and the Controlled. We watched videos and did experiments on these 'variables.' The manipulated variable is a changed variable. This is a variable that you can change in your experiment. Example: Sunny wondered if changing the texture on the surface would change how fast the ball would move. The responding variable is how the object will react to the manipulated variable. It is like cause and effect. The cause: The Manipulated Variable. The effect: The Responding Variable. Example: Sunny noticed that the ball went faster on smoother surfaces and went roughly on not so smooth surfaces. The control variable is a variable that you keep the same. Example: Sunny kept the temperature the same in the room.

SP8: Obtain, evaluate and communicate information:
During this week, my partner and I did an experiment called, 'The Whirly Bird". The Whirly Bird is a model paper helicopter. We got one sheet of paper, with two rectangles that had lines on them. These rectangles are the Whirly Birds. We cut them out and folded them along the lines. Then we cut one of the Whirly Birds in half. (The long, thin rectangle body. [Picture: Above.] This was so that we could determine how fast the normal sized Whirly Bird, and the short Whirly Bird would fall. Our hypotheses was that when we dropped the smaller sized Whirly Bird, it would fall slowly to the ground because it was lighter and the air could hold it up longer. The normal sized Whirly Bird would fall faster because it had more weight and the air wouldn't be able to keep it up for long. We got a yard stick, and a stop watch and timed our Whirly Birds. Our hypotheses was supported by our data, because the time for the normal sized one is 1:21 (Seconds) and the shorter Whirly Bird is 1:61. 


Link To Image: Variable Science Picture

 

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