Introduction
Building Bridges
Bridges are cool. No doubt. They are so useful for getting from point A to point B especially over water. They allow cars, trains, bikes and most modes of transportation to pass over them so many times a day.
There are so many types of bridges, all used in different scenarios. Some bridges are more suitable for different areas and lengths.
Task
There are 3 questions to this task which will be added together to make up your final grade. The total points for each task is listed below.
The first question can give you 6+ points
The second question can give you 12 points
The third question can give you up to 12 points.
Process
Go throughout the web-quest and answer the questions-
Do we need bridges?
Complete the following passage.
The short answer is _____. We do ______ bridges.
Bridges are important because they allow people to _______ distance over water, mountains and other rocky _______. Bridges allow __________ to travel to and from places, saving both time and allowing access into _________ places.
Word bank:
| travel | commuters |
| yes | terrain |
| inaccessible | need |
Discuss some ideas in a group as to why bridges are used.
eg. for easier and more accessible transport options
How do we Identify the bridges?
Answer the following using the following websites:
https://prezi.com/7w3wlp1lygqp/how-do-you-tell-different-types-of-bridges-apart/
http://science.howstuffworks.com/engineering/civil/bridge7.htm
There are 5 main types of bridges-
-Arch bridges are naturally _____. Arch bridges have that signature arch shape, similar to the harbour bridge. The arched shape allows weight to be carried _____ along the curve to the supports at the end.
-Beam bridges are the ______ type of bridge. They are able to span out quite a lot as there are several _______. The beam bridge are usually flat, with several supports coming up from the ground.
-Cable-Stayed bridges look very similar to ________ bridges. They use cables which are connected to the _______ and the _______. They are recognised by the straight cables.
-Suspension bridges are suspend the road way with ______, _____ and chains. Towers allow the cables to suspend the road way. The well-known Golden Gate bridge is a ________ bridge.
-Truss bridges are _________ framework that act primarily in tension and ____________. They are usually recognised by the joining triangles
Word bank:
| simplest | suspension | chains |
| ropes | strong | supports |
| towers | compressions | outwards |
| triangular | roadway | suspension |
Who builds the bridges?
Read the first 4 pages of this website-
http://static.nsta.org/connections/middleschool/201412TNTStudentPacket.pdf
Then play this game-
http://www.coolmath-games.com/0-build-the-bridge
While building a bridge, many different types of engineers have to over come many problems:
- the length of the bridge
- what materials to use
- how much weight the bridge needs to hold
- who will use the bridge
- how will the bridge look
Now, after playing that game, use the website above to determine what type of engineer/s you were being. Describe why in a paragraph/s.
Evaluation
Describe points getting summary,
First Question
Every correct word students get in the passage, they gain one point.
Every reason they get for the use of bridges, they gain one point (within reason)
Second Question
Every correct word the students in the passage, the gain a point.
Third Question
With the final question, The students can be given up to 12 points. The answers need to be within reasonable length and must have a good explanation.
Conclusion
After going through this web quest, student should learn:
- Why we need bridges
- How to identify the bridges
- Who builds the bridges
Thank you for completing our web quest :)
Created by-
Josie, Emma and Claire
Credits
Teacher Page
Answers-
The short answer is yes. We do need bridges.
Bridges are important because they allow people to travel distance over water, mountains and other rocky terrains . Bridges allow commuters to travel to and from places, saving both time and allowing access into inaccessible places.
Some answers may include:
• to carry a road across a river or gap in the landscape
• to carry a railway line across a river or gap in the landscape
• to allow people to cross a river or gap in the landscape
• to carry water (an aqueduct)
• to carry pipes (sewage, water, oil) across a river or gap in the landscape (a pipe bridge)
• to relieve traffic congestion.
Some answers may include:
arch- strong, outwards
beam- simplest, supports
truss- triangular, compressions
suspension- ropes, chains, suspension
cable-stayed- suspension, roadway, towers