Bridge Building Worksheet.doc - Bridge Building Worksheet Bridge ... - Free Printable
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Show Answer Key & Explanations
Step-by-step solution for: Bridge Building Worksheet.doc - Bridge Building Worksheet Bridge ...
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Show Answer Key & Explanations
Step-by-step solution for: Bridge Building Worksheet.doc - Bridge Building Worksheet Bridge ...
Let’s go through each question one by one. I’ll help you fill in the blanks with the correct answers based on what we know about bridges and engineering.
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Early Bridges
1. Ancient bridges were among the earliest types of bridges.
→ Early humans used natural materials like logs and stones to cross rivers — these are called ancient bridges.
2. Rope bridges may be the forerunner of modern suspension bridges.
→ Suspension bridges hang from cables, just like old rope bridges did!
3. Engineers use a process known as the scientific method to solve problems or figure out why something is happening.
→ This is how scientists and engineers test ideas step by step.
4. Figure 1, which will be seen in many parts of this worksheet, is an example of a truss bridge.
→ Truss bridges have triangular shapes that make them strong.
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Modern Bridge Designs
5. Arch bridges are so durable that there are some built around the turn of the 8th century BC still standing today.
→ Arch bridges push weight outward to their supports — very strong!
6. In order to build bridges, the piers must be anchored, spanning across waterways.
→ Piers need to be firmly fixed into the ground or riverbed.
7. A cantilever design is basically and very functional because it requires no external support during construction.
→ Cantilever bridges stick out from one side and meet in the middle.
8. The longest cantilever bridge in the world crosses the St. Lawrence River in Quebec City, Canada.
→ That’s the Quebec Bridge — famous for its length.
9. The longest cantilever bridge in the world crosses the Fraser River in British Columbia, Canada.
→ Wait — actually, let me double-check: The Quebec Bridge (over St. Lawrence) is longer than the Fraser River bridge. So #8 should be St. Lawrence, and #9 might be a trick? But looking at common knowledge:
Actually, the Quebec Bridge (St. Lawrence River) is the longest cantilever bridge in the world. There isn’t another longer one over the Fraser River. Let me correct:
Correction:
8. The longest cantilever bridge in the world crosses the St. Lawrence River in Quebec City, Canada.
9. The longest cantilever bridge in North America is likely the Quebec Bridge again — but maybe they mean something else? Hmm.
Wait — perhaps #9 refers to a different type? Let’s look again.
Actually, re-reading: “The longest cantilever bridge in the world crosses the ___ in Quebec City, Canada.” → That’s definitely the St. Lawrence River.
Then #9 says: “The longest cantilever bridge in North America is likely the ___.” → Still probably the same one — Quebec Bridge. But maybe they want the name of the bridge? Or perhaps it's a typo?
Let’s assume standard curriculum answers:
8. St. Lawrence River
9. Quebec Bridge
But wait — the sentence says “crosses the ___” for #8, and “is likely the ___” for #9. So:
8. St. Lawrence River
9. Quebec Bridge
Yes, that makes sense.
10. The bridge you will be making in class will most likely be a model truss bridge.
→ Most school projects use simple truss designs made from popsicle sticks or straws.
---
Engineers
11. Bridges are normally engineered by civil or structural engineers.
→ Civil engineers design infrastructure; structural engineers focus on strength and safety.
12. Engineers get a profession degree as far as B.S. (Bachelor of Science).
→ You need at least a bachelor’s degree to become an engineer.
13. Every engineer will hold a license covering thousands of dollars worth of responsibility.
→ Licensed Professional Engineers (PEs) are legally responsible for their designs.
14. Modern day civil engineers design skyscrapers and tunnels, among structures across highways.
→ They don’t just do bridges — they design all kinds of big structures.
---
Now let’s write down the final answers clearly.
Final Answer:
1. Ancient
2. suspension
3. scientific method
4. truss
5. Arch
6. anchored
7. cantilever
8. St. Lawrence River
9. Quebec Bridge
10. model truss
11. civil, structural
12. B.S.
13. license
14. skyscrapers and tunnels
---
Early Bridges
1. Ancient bridges were among the earliest types of bridges.
→ Early humans used natural materials like logs and stones to cross rivers — these are called ancient bridges.
2. Rope bridges may be the forerunner of modern suspension bridges.
→ Suspension bridges hang from cables, just like old rope bridges did!
3. Engineers use a process known as the scientific method to solve problems or figure out why something is happening.
→ This is how scientists and engineers test ideas step by step.
4. Figure 1, which will be seen in many parts of this worksheet, is an example of a truss bridge.
→ Truss bridges have triangular shapes that make them strong.
---
Modern Bridge Designs
5. Arch bridges are so durable that there are some built around the turn of the 8th century BC still standing today.
→ Arch bridges push weight outward to their supports — very strong!
6. In order to build bridges, the piers must be anchored, spanning across waterways.
→ Piers need to be firmly fixed into the ground or riverbed.
7. A cantilever design is basically and very functional because it requires no external support during construction.
→ Cantilever bridges stick out from one side and meet in the middle.
8. The longest cantilever bridge in the world crosses the St. Lawrence River in Quebec City, Canada.
→ That’s the Quebec Bridge — famous for its length.
9. The longest cantilever bridge in the world crosses the Fraser River in British Columbia, Canada.
→ Wait — actually, let me double-check: The Quebec Bridge (over St. Lawrence) is longer than the Fraser River bridge. So #8 should be St. Lawrence, and #9 might be a trick? But looking at common knowledge:
Actually, the Quebec Bridge (St. Lawrence River) is the longest cantilever bridge in the world. There isn’t another longer one over the Fraser River. Let me correct:
Correction:
8. The longest cantilever bridge in the world crosses the St. Lawrence River in Quebec City, Canada.
9. The longest cantilever bridge in North America is likely the Quebec Bridge again — but maybe they mean something else? Hmm.
Wait — perhaps #9 refers to a different type? Let’s look again.
Actually, re-reading: “The longest cantilever bridge in the world crosses the ___ in Quebec City, Canada.” → That’s definitely the St. Lawrence River.
Then #9 says: “The longest cantilever bridge in North America is likely the ___.” → Still probably the same one — Quebec Bridge. But maybe they want the name of the bridge? Or perhaps it's a typo?
Let’s assume standard curriculum answers:
8. St. Lawrence River
9. Quebec Bridge
But wait — the sentence says “crosses the ___” for #8, and “is likely the ___” for #9. So:
8. St. Lawrence River
9. Quebec Bridge
Yes, that makes sense.
10. The bridge you will be making in class will most likely be a model truss bridge.
→ Most school projects use simple truss designs made from popsicle sticks or straws.
---
Engineers
11. Bridges are normally engineered by civil or structural engineers.
→ Civil engineers design infrastructure; structural engineers focus on strength and safety.
12. Engineers get a profession degree as far as B.S. (Bachelor of Science).
→ You need at least a bachelor’s degree to become an engineer.
13. Every engineer will hold a license covering thousands of dollars worth of responsibility.
→ Licensed Professional Engineers (PEs) are legally responsible for their designs.
14. Modern day civil engineers design skyscrapers and tunnels, among structures across highways.
→ They don’t just do bridges — they design all kinds of big structures.
---
Now let’s write down the final answers clearly.
Final Answer:
1. Ancient
2. suspension
3. scientific method
4. truss
5. Arch
6. anchored
7. cantilever
8. St. Lawrence River
9. Quebec Bridge
10. model truss
11. civil, structural
12. B.S.
13. license
14. skyscrapers and tunnels
Parent Tip: Review the logic above to help your child master the concept of bridge worksheet.
