Technology
an instrument that magnifies small objects so that they can be seen easily
Compound Microscope
Scientists do this if they want to investigate a question.
Form a hypothesis
How many types of models are there
3
Measurement for Length
Meter
electrons are used to produce magnified images
Electron Microscope
The step after scientists finish their investigation.
Communicate the Results
Models you can touch
Physical Models
Measurement for volume
mL or Liters
Electrons pass through this and produce a flat image
TEM (Transmission Electron Microscope)
The steps scientists take when they finish their tests.
Analyze the Results
Models made up of equations and data
Mathematical Models
Measurement for Mass
gram
Electrons bounce off the surface and produce a 3D image
SEM (Scanning Electron Microscope)
An experiment that only tests one variable
Controlled experiment
an explanation that ties together many hypotheses
theory
length x width
area
This is how SEMs and TEMs are different
SEMs = 3D
TEMs= flat
The step where scientists decide if their results support their hypothesis.
Draw Conclusions
models showing systems of ideas
conceptual models
The meaning of SI
metric system (International system of measurement)