This awesome video highlights two students who came up with a great invention for stopping ketchup from coming out all watery. The video shows their invention and allows the students to explain the process in which they came up with a great invention.
Demonstrate how magma is more buoyant than the surrounding earth material. Volcanoes erupt simply because the melted rock rises up through cracks in the crust. This science experiment will easily demonstrate this concept.
This teacher made video does a great job explaining why changing one variable at a time when conducting an experiment is important. It also discusses what the independent and dependent variables are.
