To learn about scientific experimentation, Mrs. Newberry asks each student to perform an experiment. Which student’s activity is an experiment?

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?

Michael wants to do an experiment involving the moon. Which of the following would be classified as an experiment?

Hillary conducts an experiment based on shooting a ball from a cannon. She tests whether the angle of the cannon affects the time the ball is in the air. Which of the following is her control variable?

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 tested variable in Mia's experiment?

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?

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?

Scientific investigations involve many steps and processes. Which characteristics define a laboratory experiment?

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?

Scientists conduct many types of scientific investigations. Their efforts often include fieldwork, surveys, models, and experiments. Which statement about scientific investigations is true?

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?

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?

Which of the following statements is an example of a prediction?

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