SCI 207 Entire Course All LABS

 

SCI 207 Week 1

 

SCI 207 Week 1 Innovation and Sustainability assignment

 

SCI 207 Week 1 Discussions

 

SCI 207 Week 1 Lab Population Biology

 

SCI 207 Week 1 Lab 1

 

Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved oxygen is measured in units of parts per million (ppm). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally, answer the questions below.

1.  What patterns do you observe based on the information in Table 4?

1.  Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water?

1.  What would your experimental approach be to test this hypothesis?

1.  What would be the independent and dependent variables?

1.  What would be your control?

1.  What type of graph would be appropriate for this data set? Why?

1.  Graph the data from Table 4: Water Quality vs. Fish Population (found at the beginning of this exercise). Describe what your graph looks like (you do not have to submit a picture of the actual graph!!).

1.  Interpret the data from the graph made in Question 7.

Lab 1 – Exercise 2: Percentage Error

In the questions below, determine the percentage error. Show your work on all problems.

1.  A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.50% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 m/s. The teacher informs them that the actual velocity is 34.15 m/s. Will Jennifer and Johnny pass their final project?

1.  A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When the train arrives in Madison the conductor notices it actually took them 3.26 hours. The train company prides itself on always having its trains to the station within a 3.00% error of the expected time. Will the train company live up to its reputation on this trip?

1.  A coach tells his little league players that hitting a 0.275 batting average, within 7.000% percentage error, means that they had a really great season. Seven year old Tommy ended the season hitting a 0.258 batting average. According to his coach, did he have a great season?

 

         SCI 207 Week 2

 

SCI 207 Week 2 Lab 2 Water Quality and Contamination

SCI 207 Week 2 Discussions

SCI 207 Week 2 Footprints Lab

SCI 207 Week 2 Pinchot Lab

 

 

SCI 207 Week 3

 

SCI 207 Week 3 Lab 3

 

Post-Lab Questions

1.  Restate your hypothesis. Was it confirmed or denied? How do you know?

1.  Indicate which species was removed during each round of the experiment.

1.  Explain how the ecosystem was affected by the missing species for each round of the experiment.

1.  What actions do we as humans engage in that can lead to extinction of any of these components?

1.  What can we do to minimize our impact on the ecosystem?

Lab 3 – Experiment 2: Diversity of Plants

Post-Lab Questions

1.  Restate your hypothesis. Was it confirmed or denied? How do you know?

1.  How many different kinds of species did you find in your sample?

Which species is the most numerous in your sample area? Which is the least numerous?

1.  If each peat pot was a sample you found in a group of wildflowers, would you determine based on the diversity of flowers that the ecosystem is healthy?

1.  How does biodiversity contribute to overall health of an ecosystem?

 

SCI 207 Week 3 Discussions

SCI 207 Week 3 Global Warming –  Outline

SCI 207 Week 3 Quiz

 

 

SCI 207 Week 4

 

SCI207 week 4 Energy Sources and Alternative Energy.

 

 

Lab 4 – Experiment 1: The Effects of Coal Mining

Post-Lab Questions

1.  Restate your hypothesis. Was it confirmed or denied? How do you know?

1.  What, if any, change did you observe within your water samples?

1.  What type of substance formed in the jars?

1.  What effect do you predict coal mining has on the environment?

1.  What can be done to prevent mine drainage from damaging the ecosystem?

Lab 4 – Experiment 2: Solar Energy

1.  Restate your hypothesis. Was it confirmed or denied? How do you know?

1.  How did the revolutions of the motor compare when the solar cell was held to an incandescent light source vs. the sun as a light source?

1.  Does increased exposure to the sun’s light produce more current? Explain.

1.  How did shading different parts of the solar panel affect the motor’s output?

1.  What effect did you observe when different colored filters were placed atop the solar panel? What does this indicate about different wavelengths of light?

1.  How could you increase the electricity generated by a solar cell during the day, when the sun’s angle is constantly changing?

 

SCI 207 Week 4 Discussion Questions

SCI 207 Week 4 Lab Greenhouse Gases

SCI 207 Week 4 Nuclear Power

 

SCI 207 Week 5

 

SCI 207 Week 5 LAB Weather and Climate Change

 

Lab 5 – Experiment 1: Modeling the Water Cycle

Post-Lab Questions

1.  Restate your hypothesis. Was it confirmed or denied? How do you know?

1.  Which water cycle processes are represented in this model and by what components?

Which processes are not represented? How could the model be altered to include these processes?

How would the “weather” be affected if the water was at a decreased temperature?

Lab 5 – Experiment 2: Assessing Infiltration

Post-Lab Questions

1.  Restate your hypothesis. Was it confirmed or denied? How do you know?

What formed on the inside of the bags? What parts of the water cycle are represented in this experiment?

What condition showed the greatest change? What force contributed to this change?

How would increasing the proportion of land (sand) to water affect the amount of water vapor released?

How would drought conditions impact infiltration and condensation from the ground?

 

SCI 207 Week 5 Discussions

SCI 207 Week 5 Lab

SCI 207 Week 5 Assignment Final Paper