Scientific theories are well-supported explanations and are based on evidence from many investigations
SC.912.N.3.1 Explain that a scientific theory is a well-tested explanation, is the culmination of many scientific investigations drawing together all the current evidence concerning a substantial range of phenomena; thus, a scientific theory represents the most powerful explanation scientists have to offer.
SC.912.N.3.4 Recognize that theories DO NOT become laws, nor do laws become theories
Theories are well-supported explanations
Laws are well-supported descriptions.
SC.912.L.1.4. Compare and contrast structure and function of various types of microscopes
.SC.912.L14.1 Cell Theory
Describe the scientific theory of cells (cell theory) and relate the history of its discovery to the process of science.
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You need to know the cell theory and how continuous investigations and/or new scientific information influenced the development of cell theory.
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You need to know how scientific claims are evaluated through scientific argumentation, critical and logical thinking and consideration of alternative explanations, in the context of cell theory.
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You need to know the difference between theories and laws and be able to explain how a theory is developed.
The Cell Theory PowerPoint
Tutorials
Cells, Cells Everywhere
EOC Practice Questions
The cell theory states:
1. All living things are made up of cells.
2. Cells are the basic units of structure and function in living things.
3. New cells are produced from existing cells
Viruses are not classified as living things
TYPES OF MICROSCOPES
The compound light microscope: Uses light and lenses. Living organisms can be observed with this microscope.
Dissecting microscope: Uses light and lenses. Low magnification and produces a three-dimensional image of the sample being examined
Scanning electron microscope: Uses electrons to scan the surface is much powerful than compound microscopes and produces a three-dimensional image.
Viruses are not considered "alive" because they are not made of cells; they consist of genetic material contained within a protective protein coat called a capsid.
Lack the ability to reproduce without the aid of a host cell