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Mia wants to determine how the temperature of water affects how fast bacteria will grow. She places 2 types of bacteria in a warm and cold bowl. What is the outcome variable in Mia's experiment?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
Michael wants to do an experiment involving the moon. Which of the following would be classified as an experiment?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
Jim wants to test how thick the insulation should be in sleeping bags for people to sleep outdoors in cool temperatures. What would the tested variable be in Jim's experiment?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
Cathy designs an experiment to investigate how well cups made of different materials maintain the temperature of a cold drink. Which step will increase the accuracy and validity of Cathy’s results?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
A book publisher that sells textbooks to schools wants to make the words in its books as fast to read as possible. Which of the following would NOT be an example of a test variable they might investigate?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
Mr. Chan wants his students to understand the purpose of scientific inquiry: to acquire scientific knowledge. Which of the following strategies is NOT useful for a scientist?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
To learn about scientific experimentation, Mrs. Newberry asks each student to perform an experiment. Which student’s activity is an experiment?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
Chandra has three pieces of metal with equal masses. Each piece is the same color but different shape. She suspects that all three pieces are made of the same element and decides to measure the volume of each piece. Which hypothesis is she testing?
He will determine whether children’s test scores improve during a full moon.
If the pieces of metal have the same volume, then they are all made of the same element.
Bill puts sugar in hot and cold water and monitors the rate of dissolution.
Conduct multiple trials and have another scientist repeat the experiment
amount of bacteria at the end of the experiment
thickness of insulation material
size of the font
assumption
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