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34 questions for my 4th period test
What is science?
The research of the development of life and environment.
List the 2 main branches of science?
Physical & Natural science
What are two examples of each branch of natural science.
(Life,Physical,Earth) - Biological Science (botany & zoology)- Physical science (history of earth and atmosphere) -Earth science
Define technology
Technology is the application of knowledge and science
How do science and technology depend on each other?
To solve problems and make new discoveries
Define a scientific law
Newton’s law every action has a equal reaction
Define a scientific theory
An idea like ghost that haven’t been proven
What three points make a theory valid
Explainable, Repeatable, and must allow predictions
What is the difference between a quantitative and qualitative?
Quantitative is quantity
Qualitative is quality
Why are theories and laws always being tested
Because its needed for/of something to be time
Name three types of models used in science
visual, math, computer
How do we use models
we use models to make a scientific object and/or event easier
Define critical thinking
critical thinking help with getting all facts before answer
Define scientific method
The general way to organized thoughts about solving scientific problems
List the steps of the scientific method
Observe,
Make questions,
Research,
Collect data,
Form hypothesis,
Test hypothesis,
Make conclusion
What is a hypothesis
A hypothesis is a idea that can be tested by observations or experiments
What is a variable
A variable is any factor that can change or doesn’t
Independent
can be changed for experiment
Dependent
change according to the independent
Constant
does not change
What is the international system of units
metric system
List two reasons scientist use SI unit
To avoid confusion
To make it easier
why do we use SI prefixes
To find out if a unit is a multiple or fraction of ten
what do the following prefixes mean Kilo, Deca, deci, Ceni, Milli
Kilo- thousand
Deca- ten
deci- one tenth
Ceni- one hundredth
Milli- thousandth
order the prefixes from small to big
Milli
Ceni
deci
deka
hecto
kilo
what are the SI unit for length, mass, volume, time
Length = M
Mass = kg
Volume = m/2
Time = T
Describe the difference between weight and mass
Mass = how much an object contains
Weight = gravitational force for a object
when is the best time to use a line graph
when smaller changes are being made
what goes on the X-axis and Y-axis
the independent variable is the x-axis (horizontal line)
the dependent variable is the y-axis (vertical line)
when is the best time to use a bar graph
to compare things things in different groups
what does a bar graph clarify
The data used
when is the best time to use a pie chart
when comparing parts
why do we write numbers in scientific notation
to make calculations/form a answer
Define significant figures
each digit of a number
Define precision
the quality/condition
Define accuracy
the state of being correct or precise
Note 
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