Scientists measure length, mass, volume, density, temperature and time using SI untis.
Length is
the distance from one point to another
the amount of matter in an object
measure of the force of gravity acting on an object
the amount of space taken up by an object
measure of how much mass is contained in a given volume
The International System of Units (SI) is based off the metric system.
The measure of the amount of matter in an object is
mass
volume
gravity
density
weight
The force of gravity acting on an object is the
The amount of space taken up by an object or substance is
SI stands for
International Scientific Units
International System of Units
International System of Science
International House of Science
Which of the following is a standard system based on 10
miles
yards
metric
The basic SI unit for measuring weight is a measure of force called
newton
pound
ton
kilogram
Weight changes when
gravity changes
with different scales
the type of measurement system you use
it never changes
The curve of the liquid in which you use to take a measurement
SI
metric system
meniscus
graduated cylinder
How would you measure the volume of an irregular shaped object
with a ruler
displacement of water
on a scale
by carefully studying it
The basic SI unit for measuring volume is the
cubic meter
yard
The measure of how much mass is contained in a given volume is
The official SI unit for temperature is the
nweton
kelvin
second
When collecting data, scientists use math skills that include all of the following except
precision
significant figures
accuracy
percent error
estimation
The approximation of a number based on reasonable assumptions
estimates
Estimates are useful when
it is easy to count each individual or object
when a person isn't good at counting
when it is impossible to count every individual or object
when you don't have enough time to count every individual object
Measurements are never completely precise.
The numerical average of a set of data
mean
mode
median
range
The middle number in an ordered set of data
The number that appears most often in a list of numbers
The difference between the greatest value in the set and the least value
Humans or equipment error can produce data that does not fit with the data set. What is this data called?
reasonable data
scientific data
anomalous data
specific data
The percent difference between the known value of a substance and its measured value is called
A picture of your data is called
graph
model
The following are the ages of people in the room. 36 36 37 37 39 40 41 What is the mode?
36
37
39, 40 and 41
36 and 37
Scientists use graphs to identify trends, make predictions, and recognize anomalous, or inconsistent data.
Look at the graph on the page mom has. What type of graph is this?
linear graph
non linear graph
pie graph
line graph
3 gerbils weigh 20 grams. How many millograms would the three gerbils weigh?
200 mg
2,000 mg
20,000 mg
200,000 mg
A graph that shows data points in a straight line is called a
A graph in which the points do not fall in a straight line are called
A point that is not part of the trend is an anomalous data point called an outlier.
an approximation of a number based on reasonable assumptions
estimate
refers to how close a group of measurements are to each other
communicate how precise measurements are and includes all digits measured exactly, plus one estimated digit
refers to how close the measurement is to the true or accepted value
Data that does not fit with the data set is called
Cheryl took 7 math tests in one marking period. What is the range of her test scores? 89, 73, 84, 91, 87, 77, 94
91
5
85
21
Scientists use plans to test their ideas about things they cannot observe directly
Scientists build __________ to represent a process. They test whether the input and output from the model match the input and output of the system in the natural world.
map
Anomalous data shows on a graph as a(n)
nonlinear graph
trend
outlier
