Axolotl
What do you do with a science journal
record observations, write questions, collect data, analyze etc.
What do we use scientific notation for?
To write really big or really small numbers.
What is a prediction or statement that can be tested?
hypothesis
Qualitative data uses ______ to describe.
words
Name the three branches of science.
Physical, Earth, Life
What device do you measure the mass of an object with?
Balance
Write 320000 in scientific notation
3.2x105
What is comparing what you already know about and using that to determine if you agree or disagree?
Hint: Skeptical
Critical thinking
Quantitative data uses _____ to describe it.
numbers
What do the gusset plates do?
help to join together the bridge deck and the bridges support beams
What device(s) do you use to measure the volume of liquids
glassware
What is the expression of error as a percentage of the accepted value?
Percent Error
When you convert between the SI units you either multiply or divide by a power of ______.
ten
Truss bridges are long and use a series of interconnected ______ to strengthen it.
triangles
Was the Minneapolis MN bridge in 2007 overloaded, causing it to collapse?
NO
What device do you measure temperature with?
Thermometer
Write 0.0000651 in scientific notation
6.51x10-5
The internationally accepted system of measurement is the _____?
International System of Units
What is one way scientists can communicate the results to others?
internet, articles, conferences etc.
What is an independent variable?
factor that you want to test
What is the SI unit of measurement for temperature?
Kelvin
Calculate Percent Error:
Accepted Value: 100
Experimental Value: 97.5
2.5%
A rule that describes a repeatable pattern in nature.
Scientific Theory or Scientific Law
Scientific Law
If a hypothesis is NOT supported by an experiment, the experiment has FAILED.
True or False
false
What happened on the I-35W bridge in Minneapolis MN in 2007?
It collapsed.