All In One Science Topics: Reviewer For Tests Or Exams

SCIENCESCIENTIFIC METHOD The Scientic is a logical process for experimentation that is used to explore observations and answer questions to acquire new knowledge. It is guided by the following steps: Controlled experiment- a scientic test done under controlled conditions, where one (or a few) factors are changed at a time, while all others are kept constant.* Trials- number of times experiment is repeated. Variables- factors that are changing in an experiment Independent- factor that is changed by the scientist. Dependent- factors that respond to the change made with theindependent variable. Controlled- quantities that are remained constant but carefully observedInternational System (SI) of Measurement -Is a modern form of the metric system and is the widely used system of measurement.Metric Prex is a unit prex that precedes a basic unit of measure to indicate a unit's multiple or fraction.Machines Any mechanical tool that reduces human eort and makes work more ecient is called a machine. It could either be a simple or a compound machine.a. Simple Machine - uses a simple mechanism that allows force to be applied in a direction that is easier to manipulate. There are six types of simple machines. Lever - Consists of a rigid object pivoted