Unit 2 Tools of Inquiry Quiz 2.1: Question 1:
Question 2: What is the main benefit of this model over the chemical formula NaCI?
C: It shows how the atoms in salt are arranged
Question 3: How long is the students actual bed?
D: 75 inches
Question 4: What two characteristics are limitations of the students model?
C: The model is missing plants, fish, and other details found in a real river
D: The model is much smaller than a real river
Question 5: Which two models would be useful in predicting weather?
B: A mathematical model based on data
C: A map that shows wind patterns

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

4.at 0 ºc, some amount of energy is required to change 1 kg of water from a solid into a liquid. if you had a 2 kg piece of ice, what effect would this have on the amount of thermal energy required to change the water from a solid to a liquid? it would require more energy to change solid water into liquid water because there are more molecules in this larger piece of ice. it would still require the same amount of energy to change solid water into liquid water because the entire piece of ice would still gain the same amount of energy in each case. it would require energy to be removed from the 2 kg piece of ice. the larger piece of ice already has more total energy than the smaller piece of ice, so energy must be removed for the ice to become liquid. it would require less energy to change solid water into liquid water because the energy would spread through the ice more quickly and the ice already has a larger total amount of energy because it is larger than a 1 kg piece of ice.

Explain the difference between cleavage and fracture