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 ...

Whether and how much a substance dissolves (solubility) is a property of that substance. To compare the dissolving of different substances, they need to be tested in the same way. Students develop a ...

STEM is more than just a grouping of subject areas. It is a movement to develop the deep mathematical and scientific underpinnings students need to be competitive in the 21st-century workforce. But ...