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science vocab
Question | Answer |
---|---|
compound light microscope | consists of a tube with lenses, a stage, and a light source- it magnifies the image |
electron microscope | tiny particles of matter are used to magnify images |
transmission electron microscope | electrons bounce off the surface of the specimen and the three dimensional (3-D) image is produced - can magnify up to 100,000 times the actual |
x-rays | used for almost a century to see internal structures of organisms (bones, heart, lungs) and the structures of proteins |
CT scans | Provides a clearer more detailed image than x-rays; and often a dye injected to help highlight tissues |
MRI | (magnetic resonance imaging) provides a clearer image than x-rays by using short bursts of magnetic fields |
Computers | can collect storage, organize, and analyze information |
Graduated cylinder | measures the volume of liquids - basic unit is liter |
Thermometer | measures how hot and cold an object is- basic unit is degree |
balance | measures the mass of an object - basic unit is Kilogram |
Meter Stick | measures the length of objects - basic unit is meter |
Length | how long an object is - the basic unit of length is the Meter |
Volume | the amount of space an object occupies- liquid is measured in liters |
Mass | the amount of matter in an object - basic unit of measure is the kilogram |