Elementary School Other (Science) Laboratory

Here's a LEGO robot that I designed using the LEGO NXT robotics kit. It's a quick build for a single class period activity! SIX EASY STEPS!! The beauty of a quick build like this is a quick break down and put away at the end of class!

Use this hands-on scientific method activity during a matter unit, or as a fun science center. Perfect for some fun after break!

You will need:

- a clear jar (such as a mason jar)

- 2 cups of water

- 2 tablespoons baking soda

- 6 tablespoons white vinegar

- food coloring (optional)

The question and procedure is filled in on the recording sheet. Students will need to formulate and record their hypothesis, materials, observations, and conclusion. There are guiding questions to help students think about what happened during the experiment.

The reaction created by the mixture of the baking soda and vinegar causes CO2 to form, creating gas bubbles that make the corn "hop" around.

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I welcome and appreciate your comments! :)