Monday, March 28, 2011
Sunday, March 27, 2011
Racing Beads (Conduction) Experiment
This video is an experiment that exemplifies conduction. Hot water is poured into the cup containing a wooden spoon, plastic spoon, a straw, and a metal knife. All of these utensils have a bead attached to the end of them with margarine acting as glue. As the heat travels up the utensils, the margarine melts, so the utensil with the bead that falls off first is the best conductor.
Energy Lesson Plan Overview
Our topic is energy, and since energy is very broad and has many concepts to cover, we picked quite a variety. First we start with kinetic and potential energy and Elizabeth has found a few great experiments for students to do along with these concepts such as a rubber band activity and a marble activity, which measures the amount of kinetic energy by using weight and height. The next part of our lesson plan discusses nonrenewable and renewable energy, and ways we can help conserve the nonrenewable energy. Jeremy has a solar pizza box oven that uses the sun’s rays to cook or warm up food instead of wasting energy on a house hold oven. As we touch on thermal energy with Jeremy’s lesson, we then go onto the different types of heat transfers with Mallory’s lesson. Those three types that are covered are “conduction,” “convection,” and “radiation.”Each type has an activity to go along with it and those are “Racing Beads,” “Circulating Some Heat,” “Spinning Spiral,” and two small activities to show radiation. “Racing beads” shows what type of materials are conductors and which ones are insulators. “Circulating some heat” is a good visual of how heat circulates through convection. With all of our lessons and activities, students can learn a lot about energy and how important knowing about energy is.
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