However, water comes from different sources, like tap water or river water. These water samples have other substances dissolved in them. They might show up as slightly acidic or slightly alkaline ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

View the video below to see what you and your students will do in this lesson. Because substances are made up of different atoms and molecules, they react in characteristic ways. Production of a gas, ...