Kallea Christy

                                                           Week 6 Lab/Lecture Description of what we did in the lab?  What are your best understandings of: How do the phases of the moon occur? The phases of the moon are determined by the sun, the moon, and the earth.  What causes the seasons? The tilted axis of the earth.                                Summer- The Northern Hemisphere is closer to the sun.                                Winter- The Southern Hemisphere is farther from the sun.  What causes a lunar eclipse?  When the moon moves into the Earth's shadow.   Geocentric is earth-centered....

    Week 5 Lab/Lecture The big question addressed in lab, and a description of what you did? The big question we addressed in this week's lab was 'How can we design a safe and durable playground surface?' We did an egg drop test with different sets of materials.  Description of what we did in the lab?  In the lab, we did an egg drop experiment with multiple materials; sand, rubber turf chips, and hay. First, my group decided to put sand in the bottom of the bowl and then hay, we dropped from 1 meter. The egg did crack but didn't crack open. We then decided to change what we had in our bowl. We switched it to rubber turf chips on the bottom then hay on top. We dropped from one meter and it survived. Then we did two meters and it survived. We concluded that the rubber turf chips provide a safe and bounce like when a kid falls. It will provide a safety aspect for a playground.  A description of what you learned in Thursday's lecture. In Thursday's lecture, we took ...

  Week 4 Lab/Lecture The big question addressed in lab, and a description of what you did? The big question discussed was 'What affects how long it takes a swing to go back and forth?' My group and I attached a wooden stick to our table and tied a string. We attached washers and measured the time they swung back and forth. After three trials we shortened the string. We had three sets of trials for each set of length of string.  Description of what we did in the lab?  My group chose to ask the question 'How does the length of string affect how long it takes a swing to go back and forth?'  Our hypothesis was 'If the string is short then it take a shorter time to go back and forth.' We discovered that with the shorter string, it swings faster. The longer the strong the slower it swings.  A description of what you learned in Thursday's lecture. Weight does not matter when it comes to a swing period. The swing period does depend on the length.  Swings eventually...

Week 3 Lab/Lecture The big question addressed in lab, and a description of what you did? The big question we discussed in lab this week was 'What affects a rider's speed down a slide?' We built a demo of a slide and the question my group focused on was 'How does the weight of the ride affect the speed of the ride/object?' figure 1 Description of what we did in the lab?  We built a demo of a slide, we used a piece of wood that models the slide. We then used a toy truck pictured in Figure 1. We did three trials for each weight. The first trial was just the truck. In trial two we added three washers to the back end of it. In trial three, we added three more washers, a total of six. After each trial, we added about 20 more grams to it.  A description of what you learned in Thursday's lecture. In the lecture, we discussed the formula for acceleration. I learned it in high school but the past two weeks have been a good refresher.  Acceleration= change in velocity/time...