Define
You are to build a platform that is four feet high and will support three plastic dinosaur toys. You may use wood, Styrofoam, or any other material you like. What is one of the criteria of this project?
a. Time limit of 20 minutes
b. Four feet high
c. Must use wood
d. Must be able to support your body weight
B. Four feet high
What do you call the device you design that you are testing?
a. Device thing
b. Sample One
c. The Prototype
d. The exhibit
C. The prototype
Students are to work in groups and develop a solution to the city's problem of
invasive raccoons getting into trash cans. The solution can only cost $100.00. Once all the ideas are presented, the students will vote on the best solution. Which is the best solution that meets the criteria and constraints?
a. Lisa, Tara, and Janine have a plan to provide locks to each resident to put on their trash can lids that will prevent the raccoons from opening them. Their plan will cost $98.00.
b. Jose and Sara drew a diagram to present their solution. They propose building a high fence around the trash area. It will cost $500.00
c. Denise does not like to work with groups. She came up with her own idea and presented it to the class. She wants to charge a fine to people who do not secure their trash cans. Her plan will have no cost and may raise revenue for the city by charging fines.
d. Emily, Zach, and Sophie have a plan to deter raccoons from the trash area with bright lights and alarms. Their plan will cost $186.00 dollars.
A. Lisa, Tara, and Janine have a plan to provide locks to each resident to put on their trash can lids that will prevent the raccoons from opening them. Their plan will cost $98.00.
You have designed several thermoses for keeping liquids hot. You want to design a test to see which device works best. Which is the best practice?
a. Measure the temperature of the liquids in all the thermoses and compare temperature change
b. Touch the liquid with your finger to see if it feels warm or cold
c. Draw a picture of the thermos
d. Make no changes to your prototype
A. Measure the temperature of the liquids in all the thermoses and compare temperature change
You oversee building a footbridge that crosses a small stream. The footbridge must be able to hold the weight of ten people and be 2 meters across and 15 meters in length. The materials for construction must include recycled materials.
Criteria:
Hold the weight of ten people, 2 meters across, 15 meters in length.
In an egg drop experiment, each group must design a container that will keep the egg from breaking when it is dropped 10 feet. What scientific principles will naturally
be part of the constraints?
a. Gravity
b. Conductors
c. Photosynthesis
d. Analog signals
A. Gravity
Why do you have a control when you plan an investigation?
a. So that you will know who won the race
b. To minimize the effects of factors other than the one being tested
c. It is tradition
d. You don’t really need a control
B. To minimize the effects of factors other than the one being tested
After testing the balloon cars, the students found that prototype A had well-aligned wheels, with even axle rods for front and back wheels that allowed it to roll swiftly, but the balloon dragged along on the ground, slowing it down. On the other hand, Prototype B had awkward wheels that did not roll smoothly because the axle rod was longer in the front set of wheels than in the back. However, they had placed the balloon on a platform, raising it so it did not drag on the ground. What pieces should the students combine in their new solution to make a better working balloon car?
a. Different-sized axle rods and a raised balloon
b. Same size axle rods and a lowered balloon
c. Different-sized axle rods and a lowered balloon
d. Same-size axle rods and raised balloon
D. Same-size axle rods and raised balloon
You have a high ramp, a low ramp, and a medium ramp. You are going to roll a toy car down and measure how far it goes with each ramp. What should we record in our data?
a. The height of the first ramp only
b. The distance in centimeters that the car travels when released from each ramp
c. How long in seconds it takes the car to travel from the top of the tallest ramp to the bottom of that ramp
d. All of the above
B. The distance in centimeters that the car travels when released from each ramp
You oversee building a footbridge that crosses a small stream. The footbridge must be able to hold the weight of ten people and be 2 meters across and 15 meters in length. The materials for construction must include recycled materials.
Constraints:
The materials must include recycled materials
A manufacturing company wants to put up a factory to produce paint cans in an area that is mostly desert. What are some of the constraints? (There can be more than one answer)
a. Environmental effects on the ecosystem
b. Economic benefits for humans
c. What color paint will be put in the paint cans
d. Size of the building
A. Environmental effects on the ecosystem & B. Economic benefits for humans & B. Economic benefits for humans
After testing, you may decide to modify your device. This is known as __________.
a. Prototype
b. Control
c. Trial One
d. Redesigning
D. Redesigning
Two different spots have been suggested for the building of a new children’s library. An environmental study has been conducted on these two sites. One site is currently a wetlands area, but there are no buildings on it. The wetland is an area with a sensitive ecosystem. Sand and dirt will have to be brought to fill in the wetlands. This will affect the organisms living there. The other suggested piece of land has an old building that used to be a factory. The building is sitting empty and will be torn down soon. It will be a little more expensive to clean up the area where the factory sits and make it safe for use as a children's library. The environmental study is expensive, but it has already been completed on these two sites. Which is the better solution for the children’s library?
a. Fill in the wetlands because it will cost less to put a children’s library there
b. Use the old factory spot, it may cost a little more, but it will not upset the wetlands ecosystem
c. Spend even more money and build some kind of structure that hovers above the wetlands for the children’s library
d. Do neither. Children’s libraries are not important
e. Look for a third alternative and start the environmental study all over again
B. Use the old factory spot, it may cost a little more, but it will not upset the wetlands ecosystem
After testing your prototype of a balloon-powered car, you determine that the cars with a lightweight body travel the farthest. You will now
a. Modify the car prototype, so that the body is made of a 2x4 piece of wood
b. Modify the car prototype, so it has a larger balloon that holds more air
c. Make no modifications to the car prototype
d. Modify the car prototype to have a lightweight body, such as an empty plastic water bottle
D. Modify the car prototype to have a lightweight body, such as an empty plastic water bottle
You oversee building a footbridge that crosses a small stream. The footbridge must be able to hold the weight of ten people and be 2 meters across and 15 meters in length. The materials for construction must include recycled materials.
Impacts:
Perhaps it will keep people from wading through the stream. It is positive that recycled materials will be used
The teacher has instructed you to design an electrical circuit that will light a light bulb using only the materials found in the room. Which statement is true?
a. You can bring a battery from home tomorrow for this project
b. The circuit must be a parallel circuit
c. You must wear rubber gloves and safety goggles
d. You will just need one light bulb
D. You will just need one light bulb
We have created balloon cars and want to know which one is the best design. The criteria state that the car must be propelled by a balloon and travel four feet in 10 seconds. Which design is the best solution?
a. Prototype 1. travels four feet in 15 seconds
b. Prototype 2 travels four feet in 9 seconds
c. Prototype 3 travels 3 feet in 10 seconds
d. Prototype 4 travels seven feet in 20 seconds
B. Prototype 2 travels four feet in 9 seconds
Children walking to school must cross a busy street. What should be considered in coming up with a solution to this problem?
a. How many children are actually crossing the street each day
b. Is this route used for anything else
c. What can be done to make sure children are safe when crossing the street
d. None of these
C. What can be done to make sure children are safe when crossing the street
When you are testing a tool you should
a. Record data
b. Make comparisons
c. Adjust your design
d. Retest the new design
e. All of the above
E. All of the above
The city has decided to add a dog park to the city lot. It will need fencing, grass, a bench, a bag dispenser, a waste receptacle, and a sign with the rules for dogs and owners. The total cost needs to be under $25,000 dollars.
Criteria:
Fencing, grass, bench, bag dispenser,waste receptacle, and sign
In any engineering project, which one is not a constraint?
a. The cost of the project
b. The local laws
c. My favorite color
d. Scientific principles related to the solution
e. Impacts on humans
C. My favorite color
You are evaluating competing designs for an airplane throwing contest. The criteria are that the airplane has to fly at least 5 feet. The constraints are that each participant has to use an original design that they make up themselves. Who would be disqualified? (select everyone that would be disqualified)
a. Sam’s dad made Sam’s airplane. We know this because Sam and his dad told everyone
b. Tina folded her airplane, and it flew 8 feet
c. Stella got the idea of her airplane from the internet. She found step-by-step directions for folding an airplane. It also went 8 feet
d. Jamar made an airplane that flew 5 feet. He worked on the project by himself
A & C
A mountain range in Utah has high peaks that are covered with snow in the winter. The area is currently considered wilderness. This habitat has pine trees, aspens, wildflowers, deer, bears, cougars, ground squirrels, and more. Someone has recently purchased the property and wants to put in a ski resort with ski lifts for downhill snow skiing. This design project will be huge and include plumbing, electricity, construction of buildings, parking lots, roads, and machinery for the ski lift.
What are some impacts that this project might have on people?
It would provide a place for recreation and a plenty of jobs in both the construction and the running of the resort.
You and your classmates have made solar ovens. The goal was to convert sunlight to heat energy. How can you test the devices to see which one works best?
a. Place the solar ovens in the shade and see if they heat up
b. Place a different item in each solar oven to see which one melts first
c. Place the same item in each solar oven and put the solar oven in the Sun
d. All of these
C. Place the same item in each solar oven and put the solar oven in the Sun
The city has decided to add a dog park to the city lot. It will need fencing, grass, a bench, a bag dispenser, a waste receptacle, and a sign with the rules for dogs and owners. The total cost needs to be under $25,000 dollars.
Possible Impacts:
Positive for health of humans and dogs.