Packets 1-2
What was Jane Goodall's contribution to the scientific world?
studied chimp behavior
Define cell.
the basic unit of life
theory - explanation, answering how or why something happens
law - direct statement, answering what will happen
What is the difference between a control group and an experimental group?
Control Group - used for comparison, not given factor being tested
Experimental Group - compared to control group, given factor being tested
Susan said, "If I fertilize my geranium plants, [then] they will blossom".
This is referring to a what?
A. Recognize a problem
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
B. Form a hypothesis
What was Mary-Claire King's contribution to the scientific world?
studied chimp genes/DNA, comparing it to humans
Place the following terms in order from small to BIG...
organs
tissues
cells
organism
organ systems
cells
tissues
organs
organ systems
organism
List three characteristics of pseudoscience.
fixed ideas
no peer review
selects only favorable discoveries
sees criticism as conspiracy
non-repeatable results
claims of widespread usefulness
"ball-park" measurements
What three factors must be included in a controlled experiment?
independent variable
dependent variable
constants
Squidward wants to know if music will attract jellyfish. He decides to use a flute, clarinet, and a guitar.
Identify the independent variable, as well as, the dependent variable.
IV - type of instrument
DV - number of jellyfish
Define technology.
the application of scientific knowledge to solve human needs and to extend human capabilities
Which characteristic of life is not essential unless the species is close to becoming extinction?
reproduction
Define peer review.
Peer review provides what?
process by which the procedures and results of an experiment are evaluated by other scientists who are in the same field or who are conducting similar research
Provides credibility and prevents false information from being published
What are the two main types of data? Differentiate between the two.
Quantitative - numbers
Qualitative - senses
Bob read about growing plants in water. He wanted to know how plants could grow without soil.
This is referring to a what?
A. Recognize a problem
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
A. Recognize a problem
Biologists can study ______________ _________________ plants that could grow in poor soil, resist insects, fungal infections, or frost damage.
genetically engineered
What is the relationship between stimulus and response?
Provide an example.
a stimulus causes a reaction
Ex. shark smelling blood, plants leaning towards sunlight
what does it mean to be scientifically literate? Why is it important?
able to read scientific journals and gain a basic understanding
allows you to form your own opinion based on your understanding
According to the SI, the following using what units for measuring?
Length -
Mass -
Volume -
Time -
Length - meters
Mass - grams
Volume - liters
Time -seconds
TRUE or FALSE
More than one variable can be tested in a single experiment.
FALSE
What do scientists do to help preserve the environment?
*Protect animals that are close to extinction (laws, regulations, acts...)
*Study reproductive strategies
*Provide safe places for endangered species
Define homeostasis.
Provide an example
What are the two main types of homeostatic feedback?
maintaining internal conditions to maintain life within an organism
Ex. body temperature increases, sweat to cool off
Positive and negative feedback
Define hypothesis.
Form a hypothesis, based on the provided question:
Will watering my plants with fertilizer help them grow better?
testable explanation of a situation
If I water my plants with fertilizer, then they will grow better.
______________ are usually noted throughout the experiment to assist in analyzing the data.
Patterns
Place the following in order from first (1) to last (7):
___ Test a hypothesis
___ Peer review
___ State the problem
___ Research and gather information
___ Draw conclusions
___ Form a hypothesis
___ Analyze the data
4 Test a hypothesis
7 Peer review
1 State the problem
2 Research and gather information
6 Draw conclusions
3 Form a hypothesis
5 Analyze the data