Scientific Investigation
Is an educated guess/prediction; usually in “IF...THEN” form.
What is a hypothesis
Is used for measuring mass.
What is a balance?
Used first on the microscope, to make large changes in focus
What is a course adjustment?
Is the smallest unit of life
What is a cell?
Water expands when it freezes makes ice less dense, and __________ in water?
What is float?
The factors that are measured in an experiment.
What are variables?
Is used for examining extremely small specimens
What is an electron microscope?
Is used to adjust the amount of light, the light sourse
What is the diaphragm?
To maintain a constant internal environment, ex. Body temperature
What is homeostasis?
The ability for water to move against gravity up the stalk of a plant (due to cohesion - water molecules ‘stick’ to each other and adhesion - water molecules can ‘stick’ to other substances)
What is surface tension?
Is the variable that you purposely change...variable “I” change
What is an independent variable?
Is used for examining small specimens, was used to discover cells
What is a light microscope?
Makes changes the magnification
What are objective lens?
Water has an unevenly charged, making it a _______ molecule
What is polar?
It takes a lot of energy to raise or lower water's temperature.
What is high heat capacity?
Is the variable that changes as a result of changing the independent variable, the one that is measured (height, weight, length, etc)
What is the dependent variable?
Is used for measuring precise volumes of liquids
What is a graduated cylinder?
Is by the arm and the base
What is the proper way to carry a microscope?
The study of life
What is biology?
The property that helps bugs stand on water
What is surface tension?
The thing(s) that are purposely kept the same in the experiment.
What is a control?
How total magnification is calculated
What is Ocular Lens x Objective Lens?
The correct angle for a coverslip in a wet-mount.
What is 45-degrees?
Biological terms in order from smallest to largest (including Ecology terms)
What is Cell-Tissue-Organ-Organ System-Organism-Population-Community-Ecosystem-Biome-Biosphere?
Is the attraction between the positive end of one water molecule and the negative end of another water molecule.
What is a a hydrogen bond?