Laboratory investigations are carried out to prove ideas and to verify information. These investigations must be performed with accuracy, safety, and under conditions...
In this chapter, we will study the units of measurement in the metric system and also focus on converting measurements from the English system to the metric system....
Matter is anything that has mass and occupies space. Properties are characteristics by which matter can be identified. Properties of matter can be identified, measured and tested...
Density is the measure of the amount of mass present in a given volume. Density is calculated by dividing mass by volume. For example, steel has a density of 7.18g/cm3...
Force is the the push or pull an object experiences as a result of its interaction with another object. This pull or push ceases once the object ceases to interact...
Motion is the change in position relative to a frame of reference. Earth is the frame of reference because it is the point from where the sunset is determined...
Energy is the ability to do work. Work is the force applied to move an object. All matter has energy. There are five basic forms of energy...
In this section, the concepts covered are, resistance, efficiency, wedges and screws, levers, pulleys, wheel and axel and compound machines....
