Core questions for 10th grade biology Core Questions Scientific Method 1. Which of the following observations is qualitative and not quantitative? A. Surveying the size of a goose population. B. Observing the nocturnal behavior of coyote populations. C. Recording the date when goose migrations begin every year. D. Counting the number of goose nests that are robbed of eggs in an area. B. Observing the nocturnal behavior of coyote populations. 2. What is true of all hypotheses? A. They are true. B. They are false. C. They are testable. D. They are indisputable. C. They are testable. 3. In an experiment, what happens to the control group? A. It receives no experimental treatment. B. It receives experimental treatment last. C. It receives experimental treatment first. D. It receives more experimental treatments than the other groups. A. It receives no experimental treatment. 4. In a controlled experiment, what do scientists measure? A. how many dependent variables they have B. how many independent variables they have C. how the dependent variables change in response to changes in the independent variable D. how the independent variables change in response to changes in the dependent variable C. how the dependent variables change in response to changes in the independent variable 5. Regarding the scientific method, which statement is false? A. Hypotheses are proven as absolutely true or false. B. The control is not subjected to the experimental variable. C. Statistical tests may be used to analyze the results of the experiment. D. Results of the experiment are often summarized in a graph or table. A. Hypotheses are proven as absolutely true or false. 6. Which of the following is true about theories and hypotheses? A. A hypothesis is highly tested, but a theory is not testable. B. A hypothesis is a general explanation, but a theory is a specific prediction. C. One hypothesis can lead to many theories. D. Several related hypotheses can be incorporated into a theory D. Several related hypotheses can be incorporated into a theory 7. Each of the following steps is involved in scientific thought except A. questioning ideas. B. evaluating bias. C. making observations. D. expressing your personal opinions. D. expressing your personal opinions. 8. List the following steps of the scientific method in order from first (1) to last (4): ____ Collect experimental data ____ Making a hypothesis ____ Analyze the data ____ Make an observation __3__ Collect experimental data __2__ Making a hypothesis __4__ Analyze the data __1__ Make an observation 9. Look at the graph below. What is the dependent variable? What is the independent variable? Dependent Variable – Rate of Reaction Independent Variable – pH Use the table below to answer question 10. Students’ Observations of a Pond Ecosystem 10. A group of students measured a ten-square-meter section of a pond ecosystem and recorded observations. Which statement is a testable hypothesis? A. The frogs living in the pond represent a population. B. Water is an abiotic component in the pond ecosystem. C. If the fish are given more food, then they will be happier. D. If the frogs are startled, then they will jump into the water. D. If the frogs are startled, then they will jump into the water.