Energy Transformations

Energy is the ability to do work. We learned that at MOSH on our field trip. We also learned that it cannot be created or destroyed. Over the next few days, we will be discussing the ways that energy can be transformed (changed) from one form to another. For instance, did you know that you observed a transformation of energy when you built your circuits last week? Well, it's true!

The battery contained energy in chemical form. It works like this. Inside the battery is a metal rod surrounded by a special paste inside a zinc casing. The rod has a chemical reaction with the paste and chemical energy is released. When you connect the wires in a closed circuit, the chemical energy is transformed to electrical energy (inside the battery) that flows through the wires and is transformed again into heat and light energy in the bulb.

Can you think of other examples of energy being transformed from one type to another? If you're having trouble thinking of some on your own, check out the "Energy Transformations" link under "Out of Sight Science Sites." It has a cool game where you can transform energy to power a robot, a city, or a farm. Enjoy!

P.S. If you thought the diagrams we drew in class of Series and Parallel Circuits were complicated, check out this diagram used to design the circuits in a motor.


P.P.S. Just click on the circuit diagram to zoom in and take a closer look. :)

Alternative Energy Sources

When most of us think about how we would light up a light bulb, plugging it in or using a battery come to mind. Similarly, when asked how you would heat up water, many people would think of using a stove or possibly solar energy. Not many of us would think of a lemon or a peanut as a source of energy. BUT....they are! Here are some links to some fun experiments you can try at home to explore this concept. If you try them, make sure to write up a lab sheet (like the awesome one on the Jazz Standard wall that Emily made about the swinging cereal from the Bill Nye video) so we can share your scientific findings with the class.

Lemon Power!

Peanut Power!