Johnathan is trying to find two blocks of wood with the same mass for a project he is working on. He doesn't have a balance, so he makes a crude one out of materials he has on hand. He put a block of wood on either side and the block on the left side was at a lower level than the block on the right. If Johnathan wanted to both sides to be at an equal level would he need more or less mass on the right side?
Ans: more

John and Keith are neighbors. They have been pondering about how to communicate with each other in a doomsday scenario when all the electronic devices would be useless. They connected their houses with three ducts. One of the ducts is filled with air; they called it channel A. Another duct is filled with water; they called it channel B. And the last duct is filled with iron; they called it channel C. They can now transmit sound with these channels of communication; in case, disaster strikes. How much faster would be channel B than channel A in m/s, 1130 m/s or 1137 m/s?
Ans: 1137 m/s

Stef is a young girl interested in the geography of the world. For her birthday, she got two different representations of the Earth. Her grandparents gave her a map that uses the Mercator projection and her uncle gave her a globe. She is comparing how certain countries look differently on the two gifts and trying to figure out why that is. She is specifically looking at Norway, a country near the North Pole, and Mexico, a country close to the equator. On which representation of Earth will Norway look bigger?
Ans: map

People in Iran used extensive grazing, fell most of their trees so they have lots of problems with desertification. Iraq took a more mindful approach to land use, they preserved native species, planted trees and didn't overgraze the land. Which country lost fewer bodies of water to desertification?
Ans: Iraq