SCIENCE

• research problem - is a specific issue or question that seeks to investigate through research. it is the starting and foundation of any research project
• dependent variable - property that is being measured or tested in a scientific experiment
• independent variable - property or factor that is controlled by the experimenter
• hypothesis - an educated guess that is based on what the person think is the reason or solution to the research question
• experimental design - method of conducting research that aims to test the causal relationship between variables
• in designing an experiment, it is important to remember that the experiment should be a?

  fair test
• all of your observations are also called?

  data
• qualitative data - pieces of information that are not in numerical form.
• quantitative data - numerical data that can be measured, counted, or calculated.
• qualitative data - observation on color, odor, sound, taste, texture and other non numerical properties
• data interpretation - interpreted by analyzing and synthesizing the relationship between variables in the experiment
• quantitative data - may be interpreted using certain statistical tool
• conclusion - statement that answers question related to the research problem
• recommendation - include suggestions
• summary - called an abstract. includes a short description of the story
• substances - can be classified into elements and compounds
• compound - substance that is made up of two or more elements that are chemically combined in fix proportion
• element - substance that is composed of only one type of atom
• mixture - combination of two or more substances where there is no chemical combination or reaction
• homogeneous mixture - the composition of these kind of mixture is the same all throughout the mixture
• homogeneous mixture can be?

  solutions and colloids
• solutions - homogeneous mixture of two or more components
• in all solution, all the components appear as a?

  single phase
• colloid - made up of particles whose sizes range between those of susupension particles of a solution
• heterogeneous mixture - consist of visibly different substances or phrases, and its overall composition is not uniform
• suspension - a type of heterogeneous mixture that is made up of suspended solid particles that settle to the bottom of the suspensions container
• solutions - is made up of two components
• solute - substance present in a smaller amount
• solvent - substance present in a larger amount. it dissolves another material whereas the solute is the substance that is dissolved
• a solution that has a water as the solvent is generally called an?

  aqueous solution
• solubility - maximum amount of solute that can be dissolved in a given amount of solvent
• soluble - a solid substance that dissolves completely in a given solvent
• miscible - two liquids that mix each other
• saturated solution - a solution that has reached its maximum solubility
• unsaturated solution - a solution that can still dissolve additional solute
• the term protista was introduced by a german biologist?

  Ernst Heinrich philipp august haeckel
• protozoans - are organism under kingdom protista that are eukaryotic, or have a visibly evident nuclei
• flagellates - which have whiplike structures called flagella
• sarcodina - which have pseudopodia or false feet
• ciliates - which have short hairlike stuctures