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Questions and Answers
A hypothesis must be based on scientific knowledge.
A hypothesis must be based on scientific knowledge.
True
A scientific theory is a guess about how or why something happens.
A scientific theory is a guess about how or why something happens.
False
Scientists make predictions that tell what will happen under any and all conditions.
Scientists make predictions that tell what will happen under any and all conditions.
False
The scientific method includes the steps involved in a scientific investigation.
The scientific method includes the steps involved in a scientific investigation.
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"Did life on Earth evolve over time?" This question can be answered scientifically.
"Did life on Earth evolve over time?" This question can be answered scientifically.
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Scientific experiments are performed under controlled conditions.
Scientific experiments are performed under controlled conditions.
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Scientists can study all aspects of the natural world, including experimenting on an extinct animal.
Scientists can study all aspects of the natural world, including experimenting on an extinct animal.
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Communicating your results allows others to test your hypothesis.
Communicating your results allows others to test your hypothesis.
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Experimental evidence that agrees with your prediction falsifies your hypothesis.
Experimental evidence that agrees with your prediction falsifies your hypothesis.
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The first step in a scientific investigation is always to develop a hypothesis.
The first step in a scientific investigation is always to develop a hypothesis.
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Scientists gradually build an increasingly accurate and detailed understanding of the natural world.
Scientists gradually build an increasingly accurate and detailed understanding of the natural world.
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Newton discovered the law of gravity when an apple fell from a tree and hit him on the head.
Newton discovered the law of gravity when an apple fell from a tree and hit him on the head.
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Scientific evidence is any type of data that may either agree or disagree with a prediction.
Scientific evidence is any type of data that may either agree or disagree with a prediction.
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Scientific theories are broad explanations that are widely accepted as true.
Scientific theories are broad explanations that are widely accepted as true.
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Assumptions scientists make include:
Assumptions scientists make include:
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A hypothesis:
A hypothesis:
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A scientific theory:
A scientific theory:
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Which is the correct order in a scientific investigation?
Which is the correct order in a scientific investigation?
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To test a hypothesis:
To test a hypothesis:
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An scientific experiment:
An scientific experiment:
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Food chains are scientific models that:
Food chains are scientific models that:
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Science cannot answer all questions.
Science cannot answer all questions.
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Study Notes
Scientific Hypothesis and Theory
- A hypothesis must be grounded in scientific knowledge and can be proven incorrect.
- A scientific theory is an explanation based on substantial evidence, contrasting with a mere guess.
Scientific Method
- The scientific method includes systematic steps such as observation, questioning, forming hypotheses, and testing them.
- The first step in scientific investigation involves making observations rather than jumping straight to a hypothesis.
Predictions and Experimental Conditions
- Scientists cannot predict outcomes under all conditions; predictions are generally based on specific scenarios.
- Scientific experiments must be conducted under controlled conditions to ensure accuracy and reliability.
Communication and Evidence
- Sharing results allows peer testing of hypotheses and fosters scientific discourse.
- Evidence that aligns with predictions supports a hypothesis, while conflicting data may lead to falsification.
Understanding Natural World
- Scientists progressively advance their understanding of natural phenomena through ongoing research and refinement of theories.
- The statement that life on Earth evolved over time can be examined using scientific methodologies.
Limitations of Science
- Not all aspects of the natural world can be tested experimentally; extinct species, for example, cannot be subject to modern experiments.
- Science cannot provide answers to all inquiries, especially those related to belief systems.
Scientific Models and Food Chains
- Food chains serve as simplified scientific models, aiding in the comprehension of interactions within ecosystems.
Steps of Scientific Investigations
- A proper sequence in scientific investigations involves making observations, posing questions, forming a hypothesis, and conducting tests.
- Predictions play a crucial role before testing a hypothesis.
Core Principles of Science
- Fundamental assumptions in science include the idea that nature can be understood through systemic study, and that scientific ideas are subject to change based on new evidence.
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Description
Test your understanding of crucial concepts from Biology Chapter 1 with this practice test. Evaluate your knowledge of hypotheses, theories, and scientific predictions by answering true or false questions. Perfect for reviewing foundational ideas in biology.
