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AIS West 6th Grade - Q1 Science Review

Terms in this set (23)

International System of Units
called SI; standard measuring system for scientists to compare data and communicate results
metric ruler or meter stick
scientific tool used to measure length
1000 meters (m)
equals 1 kilometer (km)
kilogram (kg)
SI basic unit for mass
balance
scientific tool used to measure mass
mass and weight are different
because weight measures the force of gravity on an object
density
is found by dividing its mass by its volume
volume
the amount of space an object takes up
graduated cylinder
a scientific tool used to measure the volume of a liquid
to find the volume of a regular solid
volume = length x width x height; label in cm 3 (centimeters cubed)
thermometer
a tool used to measure temperature
accuracy
the level of closeness between a measured quantity and the actual or standard value
mean
the average of a list of numbers in a set of data
median
the middle number in a set of data
mode
the number that appears most often in a set of data
range
the difference between the greatest and the least number in a set of data
hypothesis
is clear and testable
observation
scientific process of studying objects to gather information
measure volume of an irregular object
can't measure length, width, and height, of a rock; therefore you immerse the rock in water using a graduated cylinder and measure the difference in water level (displacement of the water)
Do you know how to find the mean, median, mode, and range in a set of data?
I sure hope you do!
Do you know SI and why scientist use it?
I sure hope you do!
Do you know how to read a graph and recognize a trend?
I sure hope you do!
precision
how close a group of measurements are to each other
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