IPC Unit 1 Study Test
What is the correct number of significant figures for 60?
1
What is the correct number of significant figures for 0.0026?
2
controlled variable
A variable that is not changed in an experiment
Which step of the scientific method is the scientist using? "The average birthweights of the chimpanzees in the study are shown in this circle graph."
Analyze Data and Draw Conclusions
What is a unit used to measure temperature?
Celsius
Which step of the scientific method is the scientist using? "Look at how the ground forms a crack right there. I wonder how that happened?"
Observation
Which step of the scientific method is the scientist using? "How does light intensity before bed affect one's ability to sleep?"
Problem Question
Which statement best describes the graph?
The variables have a direct relationship.
Which statement best describes the graph?
The variables have an inverse relationship.
Which statement best describes the graph?
The variables have an undefined relationship.
physical science
a branch of science that focuses on the study of matter and energy
experiment
a process that uses controlled conditions to test the hypothesis
Science
a process used to gain knowledge about something through observation and investigation
bias
a process where the scientist influences the results to obtain a desirable outcome
energy
a property that can be converted or transferred from one object to another
scientific law
a statement that describes what is happening in nature based on repeated experiments under the same conditions
matter
anything that occupies space and has a mass
Isaac Newton
came up with laws about motion, including gravity, and published a book called the Principia
What is a unit used to measure volume in solids?
cm3
theories
complex and may be changed when new information is available or new technologies are developed
accuracy
describes how close your measured value is to a true or known value
J. J. Thomson
discovered electrons
What is a unit used to measure density?
g/cm3
What is a unit used to measure mass or weight?
grams
A(n) ___________ is an interpretation of something you have observed.
inference
What is a unit used to measure volume in liquids?
liters
inductive (reasoning)
logic that starts with a small observation or question and ends in a broad generalization or theory
Archimedes and Isaac Newton both used ______ to explain their observations.
math
Ancient Egyptians practiced chemistry when they did ____________.
metallurgy
What is a unit used to measure length?
meters
Before it was an official type of science, _________ was a blend of alchemy and astronomy.
physics
John Dalton
proposed that all matter was made up of atoms
laws
simple and often expressed as mathematical equations
scientific theory
the explanation of phenomena through the use of several investigations or a scientific method
Dmitri Mendeleev
the first man to organize a periodic table of elements
trend
the general direction in which a graph is moving
critical thinking
the process of making a reasonable judgment that is both logical and well-thought-out
chemistry
the study of the composition and structure of matter and how matter undergoes chemical reactions
dependent variable
the variable that changes in response to the independent variable
independent variable
the variable that is changed on purpose
classify
to group objects together based on a shared attribute
communicate
to share with others all that you discovered
