Scientific Models
Life scientists often use models. Choose one career that may follow life science principles.
Answers will vary.
The lab symbol that features a picture of a mouse refers to making sure what type of creatures are kept safe in an experiment?
What are animals?
List one thing that is not an example of technology.
Answers may vary.
What are plants, animals, or anything occurring naturally in the world?
The variable that a scientist can control or change in a study is called this variable or the manipulated variable.
What is the independent variable?
Grouping items according to their type is termed this.
What is classifying?
Describe the key disadvantage of cars as a form of technology.
What is pollution?
The lab symbol that features a hand under running water refers to this idea, which is a "clean" idea for the end of an experiment.
What is handwashing?
Define science according to what we have learned this chapter.
What is, "Science is a testable way to understand and explain the world?"
The variable that responds to the manipulated variable is called this variable, which is usually measured or counted in a scientific study.
What is the dependent variable?
"Ten teenagers are taking a trip to town." Despite the alliteration (an English term), this statement describes which type of observation in science?
What is a quantitative observation?
What are computer models?
The lab symbol that features a skull and crossbones refers to this dangerous idea.
What is toxic (poison)?
List 3 examples of technology.
Answers will vary.
Any scientist should test this number of variables at a time in an experiment to keep the procedures concise.
What is 1?
Mr. Rodgers will wear a pair of Nike tennis shoes tomorrow. This statement represents which scientific term? (Although, it's probably more of a fact.)
What is a hypothesis?
Airplanes, cars, and telephones represent which type of models?
What are physical models?
You probably won't be shocked to know that the lab symbol showing a power cord and a lightning bolt refers to this type of hazard.
What is electrical hazard?
List the steps of the scientific method in order.
What is observe, hypothesize (predict), perform a controlled experiment, analyze results, draw a conclusion, and form a theory?
Greg wants to see if listening to country music improves vocabulary test scores of seventh grade students. What is the independent variable in this experiment?
What is the country music?
Using our senses (seeing, touching, hearing, tasting, smelling) to understand the world or our environment is what scientific skill?
What is observing?
Describe an advantage of scientific models.
Answers may vary.
Key answer: Scientific models help us understand things clearly.
The lab symbol with the exclamation point in the middle of a triangle refers to which symbol, which is more of an overall idea.
What is general caution?
Possible answer: Technology is the use of science to improve the world and add convenience to our lives.
Carrie wants to see if adding an extra cup of sugar to her sweet tea will sell more tea at her restaurant. What is the dependent variable in this study? What is one control (something that should be kept consistent) in this study?
Dependent variable: how much tea is sold
Possible controls: One day, she should not add sugar to compare it to the day she adds sugar.Using the same brand of tea, same amount of water, etc. (Answers may vary)
Drawing a conclusion based on prior knowledge or experimental data is termed this.
What is inferring (making an inference)?