1.Which of the following statements about the image shown below is NOT an observation? - answersc. The insects pattern shows that it is poisonous.
2.
... [Show More] The statement "The worm is 2 cm long" is an... - answersa. observation
3.An inference is... - answersb. a logical interpretation of an observation.
4. To be useful in science, a hypothesis must be... - answersc. testable.
5. Which of the following statements about a controlled experiment is true? - answersb. only one variable is tested at a time.
15. A skeptical attitude in science... - answersc. means a new idea will only be accepted if it is backed by evidence.
16. The purpose of peer review in science is to ensure that... - answersd. published results meet standards set by the scientific community.
17. A scientific theory is... - answersb. a well-tested explanation that unifies a broad range of explanations.
23. The process in which 2 cells from different parents unite to produce the first cell of a new organism is called... - answersd. sexual reproduction.
24. The process by which organisms keep their internal conditions relatively stable is called... - answersd. homeostasis
6. What are the goals of science? - answersThe goal of science is to provide natural explanations for events in the natural word.
7.How does an observation about an object differ from an inference about that object? - answersAn inference is an interpretation while an observation is what is noticed.
8.How does a hypothesis help scientists understand the natural world? - answersIt is base for an experiment.(a place to start).
9.Why does it make sense for scientists to test just one variable at a time in an experiment? - answersIf several variables were changed then scientists would not know which one variable changed the experiment.
10.Distinguish between an experimental group and a control group. - answersA control group is exposed to the same conditions as the experimental group except for 1 independent variable.
11.What steps are involved in drawing a conclusion? - answersinitial observation, hypothesis, experiment, observation/analysis of data, Interpretation,final hypothesis supported, finally draw a conclusion
12.How can a graph of data be more informative than a table of the same data? - answersGraphs can show a piece of information compared to another piece (like in a pie chart) Easier to see patterns, a table it is harder to see comparisons.
13.Suggest an experiment that would show whether one food is better than another at speeding an animal growth. - answerspeanut butter is better than ice cream because peanut butter has protein. food, weight, growth, & activity level.
18.Why are scientific theories useful? - answersIt is describing a well-tested explanation.
19.Why aren't theories considered abosolute truths? - answersScience is always changing, a theory is always changing and may be revised or replaced.
25.How are unicellular and multicellular organisms alike? How are they different? - answersBOTH [Show Less]