Chapter 1, Problem 1SLA

Define and distinguish between: a. a hypothesis and a scientific theory b. an experimental group and a control group

You want to observe students studying in a classroom. What variables will you consider in your collection? Describe the nature of your data set

Use your selected principle and make a demonstration on how you would improve sheep breeds. Use specific sheep breeds in your explanation/demonstration. If it helps to upload a diagram, please do so.

how would you explain to your neighbor why there was an algae bloom in his pond? Use concepts and evidence from lab to support your answer.

Which option best describes why it is important for scientist to evaluate the results of their experiments in an unbiased way and report their findings accurately.

Which website author is most likely to offer advice based on scientific research? O A. A professor at a well-respected university O B. An activist at a radical nonprofit organization O C. A person with "Dr." in front of his or her name D. A chemist who develops supplements SUBM

The Scientific Method Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below. A. recognize a problem B. form a hypothesis C. test the hypothesis with an experiment D. draw conclusions 1. Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted. 2. Susan said, "If I fertilize my geranium plants, they will blossom." 3. Jonathan's data showed that household cockroaches moved away from raw cucumber slices. 4. Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different mouthwash on bacteria on each plate. 5. Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed. 6. Dana wanted to know how synthetic fibers were different from natural fibers. 7. Edward saw bats catching insects after dark. He asked, "How do bats find the insects after dark?" 8.…

Use the table to answer questions 1 through 3. Students carried out an investigation. They attached inflated balloons to toy cars. As air moved out of the balloons, it pushed the cars forward. The students measured how far each car moved in a set time period. Then thev recorded the data in a table. Distance Traveled (in cm) Time (s) 10 Toy Car 98 10 50 78 10 Which of the following statements is an inference rather than an observation? A. Car A moved the greatest distance. B. Car B had a balloon with very little air. C. Car A moved the fastest of all the cars. D. Car C moved more quickly than car B.

Examine the titles of the following sample journal articles. For each title, decide if you think the goal of the research is to: a.describe a cause-and-effect relationship b.describe a pattern, measurement, or observation in nature c.describe a scientific model d.describe a tool or process for scientific research e.something else   Journal article titles:  The impact of food and predation on the rise and fall of population sizes of snowshoe hare Two species competing for a limited resource cannot coexist How competition from other species and other factors affect where a barnacle species lives The interaction of drought and habitat explain patterns of where and when saguaro cactus plants grow Development of a new method for assessing the amount of disturbance in salt marsh ecosystems The make-up of the microbial community in the leaves of pitcher plants is affected more by the types of predators than the number of predator species.