the two tall structures on a bridge are called....
Towers
a curved bridge made up of voussoirs

arch bridge
the middle piece of an arch bridge that locks the other pieces together

keystone

a pulling force is called....

Tension
an educated guess, or a guess you make based on information you already know about what will happen in an experiment
hypothesis
in what city is this bridge?

NEW YORK CITY!
name: Brooklyn Bridge
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Bronx, NY
the part of a bridge where people, cars, or animals can travel

Roadway
or Deck
the simplest type of bridge made up of one long structure

beam bridge
the length of a bridge is also called the ....

span
a pushing force is called...

compression
name the steps to the scientific method
1. hypothesis
2. research
3. experiment
4. data
5. analyze
6. conclusion/share results
the middle part of this bridge moves up and down to let boats pass through

lift bridge

Manhattan, New York
the structures that hold up the roadway.
hint: they are in tension

suspension cables
a bridge that uses cables to hold up the road

suspension bridge
a series of triangles make up a .....

truss
how does an arch bridge distribute a load (weight)?

arch bridges divide weight in half: to the right and to the left
which beam bridge supported the most weight? why?

the 4"
the shorter the beam the stronger the bridge because it has more support
a bridge that allows boats to pass by opening the middle span

draw bridge

Queens, New York
the two support structures on the ends of the bridge
abutment
a bridge that rotates to let ships or boats pass through

swing bridge
this type of graph shows when events occurred

timeline
which part of the structure is in tension?
which part is in compression?

rubber bands = tension
straw = compression
which shape was the strongest? why?

type 5: sandwich
because it divides the weight into many parts
a bridge made up of triangles

truss bridge
London, England
The ground where the bridge is built is called...
Foundation
this type of bridge resembles a musical instrument. the cables are attached to the tower at different points
cable-stayed harp bridge
the trapezoid-shaped pieces that make up an arch bridge are called...

voussoirs
What does Newton's Third Law of Motion explain?
For every action there is an equal and opposite reaction

which bridge supported more weight? why?

the suspension bridge.
the suspension cables (strings) allow the bridge to support a greater load (more weight)
a bridge where all the cables meet at one point on the tower

cable-stayed fan bridge
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San Francisco, California