Plan and conduct a fair test to compare and contrast the forces (measured by a spring scale in Newtons) required to overcome friction when an object moves over different surfaces (i.e. rough/smooth).
In this unit, students discuss the science phenomena of how matter has different properties depending on the number and kind of atoms that make it up. In this lesson, they observe how forces act on matter, focusing on how unbalanced forces cause objects to move. This page provides a high-level extract of this lesson.
In this unit, students expand their understanding of the need for energy among living things to include non living energy systems. They build sleds to figure out how the phenomena of friction transfers energy out of systems. This page highlights components of this lesson.
