Riccardo's Science Blog

Summary : The environmental accords are a series of rules or policies that make sure a city or possibly urban village is a safe, clean and sustainable place to live. The environmental accords are split up into 7 different categories: Energy, waste reduction, urban design, urban nature, transportation, environmental health, and water. Each policy is in charge of helping a direct result in the community. Such as policy 6, this policy makes sure that the city has a plan to remove waste, so all of it doesn't go to landfills. For example you could recycle or create a compost bin. By making sure people follow this rule, it can help reduce methane gases because less things that cause methane gas are being put in landfills. Over time, this can help the global warming crisis. S&EP: Communicating Information: As the final piece of the urban village project, we were put in charge of creating a poster type advertisement where we would choose three environmental accords a...

Summary : Let's review some things, the pH scale tells us how basic or acidic something is. The pH scale ranges from 0 to 14.  Acids have a pH ranging from 0 to 6.9. The lower the pH, the stronger the acid. An acid that has a pH of 6 is weak while an acid that has a pH of 1 is strong. Bases on the other hand have a pH ranging from 7.1 to 14. With bases however, the lower the pH, the weaker the base.  A base that has a pH of 8 is weak while one that has a pH of 13 is strong. So what's in between? Neutral substances have a pH of 7. The most known example would be water.  Acids have a sour taste, while bases have a slippery feel. Examples would be lemon juice and soap. Acids turn a litmus paper red and bases turn litmus paper blue. A litmus paper tests a pH of a substance. A cool thing to know as well is that it is better to drink acidic things (lemon juice) rather than basic things. Most basic things can be poisonous to humans (oven cleaner). S...

Summary :  The pH scale measures how acidic or basic a solution is, 14 being the most basic and 1 being the most acidic. Water is neutral meaning it is in the middle of the scale.  A base is high (14) on the pH scale because creates a lot of hydroxide ions when mixed with water. Bases are extremely bitter and a common example of a base would be soap. An acid creates a ton of hydrogen ions and is lower on the pH scale (1). If you have two beakers containing clear liquids, but one is an acidic and the other is a base how would you tell the difference. We would use a simple piece of litmus paper. Litmus dye is taken from lichen and put on paper. Adding acid to the mix would have red litmus that would be for testing bases and vise versa for testing acids. S&EP- Conducting Investigations: This week, the main event was experimenting with cabbage juice.  We added different solutions to test the pH level and see the differences between a base and an acid.  The ...