Vocabulary
What is a hypothesis?
A possible explanation for a set of observations or possible answer to a scientific question.
Must be testable to explain a phenomenon
What is the goal of science?
provide natural and testable explanations for natural events.
Why are theories important in science?
They can make accurate predications and become reliable.
What is an attitudes and experiences generates new ideas?
1. Curiosity
2. Skepticism
3. Open-Mindedness
4. Creativity
What is biology?
The science of living things.
What is an inference?
A logical interpretation based on prior knowledge and experience.
Explain the term "Science"
accumulated knowledge about the NATURAL world.
In everyday language the term "theory" is described as what?
A guess or a general statement without any supporting evidence/ data.
Why is peer-review important?
1. can look for mistakes/ fraud
2. allows other scientists to evaluate/ test data and experiment.
3. Share research and Ideas with scientific community.
4. Meets standards for publication
What is homeostasis?
A relatively constant internal, physical and chemical condition that organisms maintain.
What is a Controlled Experiment/ Study?
An experiment where only ONE variable changes.
What are the 5 steps of scientific methodology?
1. Ask Questions/ Observations
2. Infer and Form Hypothesis
3. Design Control Experiment
4. Collect Data
5. Interpret Data/ Draw Conclusion
What is the central organizing principle of biology?
Evolutionary Theory
What is the relationship between science and society?
Science interacts with society, laws and moral principles. Impacts health, medical issues and environmental issues.
What are the two types of reproduction? Give an example.
1. Asexual Reproduction- from a single parent
2. Sexual Reproduction- cells from two different parents come together to produce the first cell of a new organism.
What is a theory?
Well-tested explanation that unifies a broad range of observations and hypotheses.
Has been tested and is reliable.
What can cause sources of error?
1. tools for measurements
2. data analysis on sample size
How can theories improve in science?
They can be revised, replaced and supported with new data.
How can scientists avoid bias?
They should be objective. Maintain a professional outlook without personal thoughts and opinions. Only state the facts.
1. exist between living and nonliving
2. parasites that cannot carry out functions of life on own.
3. Can only reproduce after infecting a living organism
What is an independent and a dependent variable?
IDV: is a changed/ manipulated variable "cause of"
DV: Observed response to change "effect of"
When are experiments NOT possible?
When the hypothesis can NOT be tested/ or when they will cause HARM
What scientist is responsible for his theory on evolution?
Charles Darwin
What practices are shared by science and engineering?
1. Developing/ Using Models
2. Mathmatics and Computational Thinking
3. Construct Explanations and Design Solutions
4. Engage in Argument from Evidence
What are the characteristics of living things?
1. Made up of cells
2. Reproduction
3. Genetic Code-DNA
4. Growth and Development
5. Materials and Energy
6. Response to Environment- Stimuli
7. Maintain internal balace- Homeostasis
8. Evolution