Water becomes more dense when it is colder and when it has more salt.  Water found on Earth's hot regions is more or less dense that water found on Earth's cold regions?
less
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As you go farther from the nucleus of an atom, the electron levels have more and more energy.  Lonnie works in a lab. He is studying atoms and discovers that the electrons that are farther away from the nucleus are moving less. or more?
more
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The larger the animal, the heavier the exoskeleton, making movement more difficult.  A puppy, compared to a elephant, is a smaller size, and therefore the weight of the puppy, compared to the elephant, is greater or lesser?
lesser
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Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.  Greta has 15 resistors in series on her circuit, while Evan has 2 similar resistors in series on his circuit. Whose circuit has the greatest resistance Greta or Evan?
Greta
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