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Think Small in a Big Way: Comet Cratering
National Science Education Standards addressed:
Grades 5–8
Science as Inquiry:
Abilities necessary to do scientific inquiry
• Design and conduct a scientific investigation
• Communicating scientific procedures
Physical Science:
Properties and changes of properties in matter
• A substance has characteristic properties, such as density, a boiling point, and solubility, all of which are
independent of the amount of the sample.
Motion and Forces
• The motion of an object can be described by its position, direction of motion, and speed. That motion can be
measured and represented on a graph.
Grades 9-12
Science as Inquiry:
• Design and conduct scientific investigations
• Communicate and defend a scientific argument
AAAS Atlas Concept Map:
Grades 5-8
Scientific Investigations:
If more than one variable changes at the same time in an experiment, the outcome of the experiment may not be clearly attributable to any one of the variables. It may not always be possible to prevent outside variables from influencing the outcome of an investigation (or even to identify all of the variables).
Even with similar results, scientists may wait until an investigation has been repeated many times before accepting the results as correct.
Accurate record-keeping, openness, and replication are essential for maintaining an investigator’s credibility with other scientists and society.
Scientific investigations usually involve the collection of relevant evidence, the use of logical reasoning, and the application of imagination in devising hypotheses and explanations to make sense of the collected evidence.
Solar System:
The motion of an object is always judged with respect to some other object or point and so the idea of absolute motion or rest is misleading.
