- 1. Ultimately, all scientific knowledge comes from:
A) experimentation
B) textbooks
C) both experimentation & observation
D) observation
A) observed
B) testable
C) experimental
D) proven correct
- 3. A scientist testing the affects of a chemical on apple yeild sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the independent (manipulated) variable in the experiment?
A) the second orchard
B) the chemical
C) the first orchard
D) the number of apples
- 4. The orchard sprayed with the chemical yields an average of 60 apples per tree, the other orchard yields an average of 40 apples per tree. Based on the data, the scientist would:
A) report his data
B) determine that the results were inconclusive
C) determine that the chemical increases apple yield
D) test the chemical on other plants
- 5. In order for the apple tree experiment to be valid scientifically, both orchards must:
A) receive the same amount of water
B) all of these
C) receive the same amount of sunlight
D) have the same species of apple tree
- 6. Theories help scientists to:
A) propose new ideas about how the world works
B) determine truth from lies
C) explain large bodies of data
D) prove hypotheses
- 7. If a theory is challenged by new evidence, which of the following could occur?
A) the evidence is wrong
B) the theory could be altered
C) the theory is accepted, not the evidence
D) a vote is taken on whether to accept the new evidence
- 8. All living things must:
A) eat food
B) move
C) maintain homeostasis
D) have two parents
- 9. A (an) ____ is a testable explanation to an observed phenomena.
A) independent variable
B) hypothesis
C) data set
D) experiment
- 10. A (an) ____ is a procedure performed in a controlled setting to test a hypothesis and collect precise data.
A) constant
B) experiment
C) theory
D) control group
- 11. A (an) ____ is any part of an organism's environment that causes a reaction.
A) stimulus
B) species
C) organization
D) adaptation
- 12. Based on this graph, which of the following statements is correct?
A) The anole weighs 2.3 grams after 3 days.
B) The mass of the anole increased by 2.7 grams during the experiment.
C) The mass of the anole increased by 2.5 grams in 3 days.
D) The anole weighs 2.5 grams after 3 days of observation.
- 13. Drip-tip leaves allow plants to live in what kind of environment?
A) desert
B) tropical
C) windy
D) cold
- 14. Scientists form ____ to explain natural phenomena supported by repeated observations and experiments.
A) pseudosciences
B) theories
C) ideas
D) hypotheses
- 15. The process of natural changes that take place during an organism's life is called ____.
A) response
B) adaptation
C) development
D) growth
- 16. What did the study of these structures result in?
A) scientists challenged an accepted theory
B) scientists confirmed an accepted theory
C) birds were shown to be genetically linked to mammals
D) bats were confirmed to be birds
- 17. What factor remains fixed during an experiment?
A) dependent variable
B) constant
C) data
D) independent variable
- 18. Which of these is not an example of the body maintaining homeostasis?
A) emergence of an evolutionary adaptation
B) insulin production in the pancreas
C) lungs absorbing oxygen
D) red blood cells delivering oxygen
- 19. • Outline and explain the steps you would go through to carry out scientific research.
- 20. • Prepare a list of criteria for living organisms.
- 21. • Explain each criteria for living organisms and how they are interdependent.
- 22. • Outline and explain the steps you would go through to carry out scientific research on what bubble gum blows the biggest bubbles..
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