___________________: Study of living and once-living things

___________________: A person who studies living and once-living things.

_______________________ – Uses a microscope to study hair, fibers, skin & blood

_______________________ – Must know where to place beehives to get the most honey

_______________________– Must choose the best soil for a good crop

_______________________ – Has studied eyes and knows how they work

Scientists (and everyday people!) use a series of several steps to solve a problem. This is called the Scientific Method.

Steps of the Scientific Method:

• _____________________________________ or question is formulated

• _______________________________ A statement that can be tested; an explanation for the problem ("If…then…")

• ___________________________ - Examining previous information gathered about our problem

• __________________________ - Testing the hypothesis

_________________ – The factor being tested (causes changes in an experiment)

_________________ – The experiment with the variable left out (used as a comparison)

 

• __________________________ – What the experimenter sees, hears, feels or detects

• __________________________ – Recorded observations, facts, or measurements taken during the experiment.

_________________________ - Numbers (measurements, amounts)

_________________________ - Distinguishing characteristics (color, shape, texture)

• ___________________ – Results that confirm/ disprove hypothesis at end of experiment

Microscopes are primarily used in biology to magnify things. There are several types of Microscopes:

• _______________________ – Uses light to magnify small objects, such as bacteria. This microscope uses 2 types of lenses:

__________________ lens: 10X magnification

__________________lens: Low Power = ______X magnification
                                            High Power = ______X magnification

Total Magnification = (Eyepiece Lens) X (Objective Lens)

• _______________________ – For viewing large objects through which light cannot pass (example: insects)

• _______________________ – Uses beams of electrons to magnify objects, which are viewed on a monitor.

Advantage: Can magnify up to ________________ X
Disadvantages: Cannot view objects in color, dyes are expensive, need skill & training

When moving to the ______________ with conversion factors, move your decimal point to the ______________ the same number of conversion factors you are moving.

Example: When converting from meters to kilometers, you are you are moving 3 conversion factors to the left. So, move your decimal point 3 places to the left: 2.0 m = 0.002 km. Now fill in the table: