Oops... grabbed the wrong ingredient!

As we are learning about the properties of matter and procedural writing, we thought it'd be fun to try out a "how-to" experiment that we learned from a video we watched in science class last week. In the video, it showed that we can actually create carbon dioxide without breathing out through our mouth or nose. That is, by mixing two different matter: baking soda (solid) with vinegar (a liquid). Together, these two types of matter create a chemical reaction that creates carbon dioxide. We tried the experiment by putting a small spoon of baking soda into a balloon, and a little bit of vinegar into a plastic bottle. We then wrap the opening of the bottle with opening of the balloon, and dumped out the baking soda, released it so that it mixed with the vinegar, creating the chemical reaction. We expected the balloon to be blown up by the carbon dioxide gas that was suppose to release inside the plastic bottle. But it didn't!! What happened? Ooops... Ms. Kwok grabbed the wrong ingredient. It was baking powder, not baking soda! Though a little disappointed, we learned that not all powder form of solids create gas when mixed with vinegar. We will try that again next week!!