1.1 What is Science?
What is the independent variable?
The variable deliberately changed
How do scientist share ideas?
publications and discussions
What are crosscutting concepts? Name 2.
Cause and effect, systems and system models, stability and change, patterns, scale, proportion and quantity
To be useful in Science, a hypothesis must be _____
testable
Define biology
the science of living things
What format should a hypothesis be presented?
If, Then, Because
What is a bias?
personal rather than scientific point of view
What is asexual reproduction?
A single parent producing offspring.
What is the purpose of peer review?
results match standards set by science community
Define stimulus
Signal to which an organism responds.
What are the goals of science?
provide natural and testable explanation, use explanations supported by data and make useful predictions.
What are scientific attitudes? Give two examples
Curiosity, skepticism, open-mindedness or creativity
What measurement system do scientists use?
Metric system
How are unicellular and multicellular organisms different
uni- single cell
multi- multiple cells
Define observation
noticing and describing events in a careful way
What is the difference between quantitative and qualitative data?
Quantitative- data
Qualitative- can't be measured or counted
Why is replication important in science?
Checks for accuracy
Give an example of a cause-and-effect relationship.
Example: If I study more, my grades will improve
List two examples of stimuli that a cat would respond to
loud noises, movement, offspring making noise, calls from other cats
Define theory
well tested explanation
What does Scientific methodology involve?
observing, asking questions, forming a hypothesis, conducting controlled experiments, collecting and analyzing data and drawing conclusions.
Why is testing ideas important part of all science and engineering practices?
testing provides evidence of value. That is works.
Why is it important for an organism to maintain homeostasis?
cells require consistent conditions to function properly
Provide evidence to support the claim that viruses fall on the border between living and non living
They can evolve and have genetic material, but they must infect a host and lack other characteristics of life
Define inference
a logical explanation based on what is already known