they can successfully identify an unknown liquid. Students will also add water and salt water to green food coloring on a coffee filter. They see a distinct difference in the way each liquid makes the ...

Water is unique. It is one of the only substances that can exist in nature as a solid, liquid and gas at the same time under ambient conditions (think of solid ice over a pond, which is liquid ...

Students will also be able to explain that if a liquid is more dense than water, it will sink when added to water, and if it is less dense than water, it will float. A liquid, just like a solid, has ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the closest stars to Earth, such that its light takes only six years to get ...

Is Ranch Dressing a Liquid or a Solid? Imagine you’re sitting down for dinner. You pick up a bottle of ranch dressing, flip it upside down, and expect it to pour onto your plate. But nothing happens.

In soils, water is a major driver of biogeochemical processes (Figure 1). Chemical reactions that control soil formation and weathering reactions occur almost exclusively in liquid water (Lindsay ...