Problem 16
Which of the following describes variables that stay the same in an experiment? A) dependent variables B) independent variables C) constants D) controls
Problem 17
Which of the following is a variable that is being tested in a science experiment? A) dependent variable B) independent variable C) constant D) control
Problem 18
What should you do if your data are different from what you expected? A) Conclude that you made a mistake in the way you collected the data. B) Change your data to be consistent with your expectation. C) Conclude that you made a mistake when you recorded your data. D) Conclude that your expectation might have been wrong.
Problem 19
Define the terms scientific theory and scientific law. Give an example of each.
Problem 21
How do you think the average temperature data for Charlotte, N.C. were obtained? What measurements were recorded? What calculations were performed?
Problem 22
Why is it important to take good notes and record all data when performing an experiment?
Problem 22
Why don't all hypotheses become theories?
Problem 23
Some scientific methods you use every day to answer questions or solve problems?
Problem 23
Why does science lead to better technology and technology lead to better science?
Problem 25
You observe two beakers containing clear liquid and ice cubes. In the first beaker, the ice cubes are floating. In the second, the ice cubes are on the bottom of the beaker. Write a hypothesis to explain the difference in your observations about the two beakers.
