AZ Sci Week #2

The highest weekly average humidity recorded during the  rst six weeks of the study was:

• 86%

• 87%

• 88%

• 89%

What was the average air temperature in the three chambers in Week 4?

• 18.15

• 18.59

• 19.58

• 20.69

Which of the following statements best describes the relative conditions of the three chambers in the first six weeks of the study?

• Chamber 1 had high average air temperature and high average humidity, Chamber 2 had low average air temperature and low average humidity, and Chamber 3 had medium average air temperature and medium average humidity

• Chamber 1 had low average air temperature and medium average humidity, Chamber 2 had medium average air temperature and low average humidity, and Chamber 3 had high average air temperature and high average humidity.

• Chamber 1 had high average air temperature and low average humidity, Chamber 2 had medium average air temperature and high average humidity, and Chamber 3 had low average air temperature and medium average humidity

• Chamber 1 had high average air temperature and high average humidity, Chamber 2 had medium average air temperature and medium average humidity, and Chamber 3 had low average air temperature and low average humidity.

Which of the following statements best describes the change in weekly average air temperature in Chamber 2?

• The weekly average air temperature increased or stayed the same consistently from Week 1 to Week 6

• The weekly average air temperature decreased from Week 1 to Week 3 and increased or stayed the same from Week 3 to Week 6.

• The weekly average air temperature increased or stayed the same from Week 1 to Week 5, and the weekly average air temperature decreased from Week 5 to Week 6.

• The weekly average air temperature decreased or stayed the same from Week 1 to Week 4 and increased from Week 4 to Week 6.

Suppose the rate of growth of crops in each of the vertical farming chambers is determined by either weekly average air temperature, weekly average humidity, or both. If the growth rate in Chamber 2 greatly exceeds the growth rate of Chambers 1 and 3, which of the following conclusions would be justi ed? Relative to the temperatures and humidity levels in the experiment:

• high weekly average air temperature or high weekly average humidity is ideal for plant life growth rate.

• medium weekly average air temperature or medium weekly average humidity is ideal for plant life growth rate.

• low weekly average air temperature or low weekly average humidity is ideal for plant life growth rate

• all of the above conclusions can be justified.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Gel Electrophoresis is a technique used by molecular biologists to analyze samples of DNA that is collected from a crime scene, for instance. Figure 1 shows the samples with the distance each band traveled from the origin. Using the figure and the data table, which of the following describes the relationship between a fragment’s increasing distance from the origin and its size?

• linear growth

• exponential growth

• linear decay

• exponential decay

A company sells toy drones. They have received multiple complaints of their toy drone's batteries suddenly dying and causing the drones to fall from the sky mid-flight. A group of scientists is designing a parachute system that will protect the drones from damamge in the event their batteries die while they're in the air. The scientists experiment with three different parachutes of different sizes and measure the speed with which the drones hit the ground. Which of the following best explains how the parachute protects the drone from damage?

• The parachute increases the acceleration that the drone experiences while falling

• The parachute decreases the impulse the ground must exert on the drone

• The parachute increases the time the drone spends coming to a stop

• The parachute decreases the net force the drone experiences while falling

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5