WorksheetsETS1-3
Total questions: 3
Worksheet time: 2mins
Name
Class
Date
1.
1. 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
2.
2. 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
3.
3. 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
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