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Models allow scientists to test things that might be too expensive or difficult to test using the real item. Which of the following would be an investigation that uses a model?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
A scientific method is a way to investigate a scientific problem. Although the order of steps may vary, the tasks performed during each step often stays the same. During which step of the scientific method would a scientist collect data?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
A hypothesis must be testable. Which one is testable?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
A teacher writes the following note on a student's experimental design: You did not identify and control variables. Why is it important to identify and control variables?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
All matter is made of atoms. atoms are too small to be seen with human eyes alone. Which model would be useful for studying the structure of atoms?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
Scientists include controls in their experiments. Why is a control important?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
All scientists perform experiments indoors inside of labs.
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
Angie conducts an experiment. Her results do not support her hypothesis. What should she do?
Repeat the experiment to check for errors.
A dog can jump higher than a cat.
False
How much weight a new bridge can support...
testing the hypothesis
It helps scientists compare their results to a standard.
because a scientist must know which variable causes change
a model
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