Tell me about a science experiment that we used a square and arch design in?
Made a square and arch out of file folder, held with plasticine and then tested both to see how much mass it could hold.
200
What are some properties of regular paper?
light, not waterproof, cuts easily, flexible
200
What are some different pillar designs?
Cylindrical, Triangular, rectangular
200
What does distributed mean?
When the weight is held all over.
200
When building a cube out of straws, which is the best connector?
Plasticine.
300
If I gave you a building task which design would you use arch or square and why?
The arch because the weight would be distributed.
300
What are some properties of a Popsicle stick?
Breaks when bent
wood
thick
300
Which beam design holds more mass?
The box girder because it has two small hollow rectangular beams and the weight is distributed.
300
How could I make a design (ex. box from manila tag) stronger?
You can create triangles in between.
300
When building cubes with marshmallows what strategies did you use?
Made a wide base, make triangles, double up on toothpicks.
400
Which is stronger a small arch gap or a large arch gap?
___________ __________________
20cm 30cm
Smaller because the weight is better distributed. Not a weak point in the middle like the larger gap.
400
What are some properties of Cardboard?
hard to fold, thick
400
Is 1 pillar better then 4? Why?
4 pillars is better then 1 pillar because the weight is held all over rather than in just one placed. The weight is better distributed.
400
What does it mean for something to be stable? Which containers are the most stable?
Something is stable if it does not fall over. For example, when we tested containers the wider the base, the more stable the container. Trees are stable because their roots are the wide base.
400
Which adhesive held the most mass during the popsicle experiment?
The packing tape because it is a strong type of tape and flexible.
500
What are some real life designs that have arches in them ?
Bridges. Buildings.
500
If I were to ask you to build be a pillar to support my chair what kind of material would you use? Paper or construction paper and why?
Construction paper because it is thicker and can hold more weight. You wouldn't want a chair to fall when you sit on it.
500
Why do engineers use the box girder design?
The hollow beams are strong when building structures.
500
Why do structures need to be strong to be useful?
Structures need to be strong when creating buildings or bridges so they can hold the mass they need to support. It is also important to choose good materials to last in any condition (weather).
500
What did we learn during the brick wall experiment?
That staggered bricks are stronger then bricks stacked on top of each other.