Results

Period 1

Owl Pellet Dissection Day 2

Day 2

Today, we will analyze results, and get pictures so we can compare what every group found. 

We will finish and turn in the lab report.

Open your folder, lay out the bones you found. Identify and label the animals found on the folder. Write your group member names on the folder as well. 

Here's a field guide to help your group identify skulls:

Hit update occasionally to view the other groups' results.

Based on the lab report format, make sure you have:

Procedure (25 points)

Consists of:

1. A materials list

2. Step by step, numbered instructions for how to conduct this lab

You can summarize the procedure to include just what you've done.

Make sure you follow the instructions in the lab. 

You will draw a food web based on your findings, analyze the mode of nutrition (carnivore/omnivore/herbivore) for all the animals you find. 

You will graph the relative numbers of herbivores/carnivores/omivores. 

This is all part of results.

Results (25 points)

Consists of:

1. Data Table and graph or drawings for your results.
2. Written explanation of the data table and graph., omnivores, carnivores and decomposers. 

Analysis questions are also part of the results. :) 

Conclusions (25 points)

Consists of:

1. A statement about whether the data supports or contradicts your hypothesis.
2. Explanation of why this occurred. What went right? Wrong?
3. What you would do differently if this experiment where repeated? What variables would you control?

 Include the three conclusion questions in your conclusions. You don't need to number them, just make sure the answers are there. Also, make sure you answer the questions in the lab report format.


Click here to complete questions 1-10 for your DOL. You can include this somewhere in your report, just make sure you label it.

Owl Pellet Dissection

Read through the background for the lab <---CLICK

Pre-write (daily grade):
Create a Freyer Model based on what you read that will help you write the introduction for your lab report. (<---click here for lab report format)

Introduction (25 points)

Consists of:

1. Purpose statement: The hint is to look at the LO. A sentence stem looks something like, “The purpose of this lab…”

2. Three supporting details. Look at your resources or Freyer Model.

3. Ends with a hypothesis. Make a specific, testable prediction about what will happen. Quantitative not Qualitative.

El Niño–Southern Oscillation (ENSO)

Today you will create a trifold brochure about ENSO.


Left: El Niño events are associated with a warming of the central and eastern tropical Pacific. 

Right: La Niña events are the reverse, with a sustained cooling of these same areas. 

Center:  Under Normal conditions, trade winds on the equatorial Pacific normally blow from east to west (Peru towards Asia). This causes the warm waters of the equatorial Pacific (US and South America) to migrate toward Asia, and cool water to upwell off Peru. Generally, high pressure builds over the cool Pacific waters off Peru producing stable atmospheric conditions while low pressure and tropical precipitation develops off Asia.

These changes in the Pacific Ocean and its overlying atmosphere occur in a cycle known as the El Niño–Southern Oscillation (ENSO).

Click here and use the tutorial to draw El Niño, La Niña, and Normal years.

In your brochure, include a written description of these three weather events. 

On the back: 
Farthest Left: make a title page

Center: Click here and listen to the Weather Channel broadcasts about El Niño, and make a prediction for the winter. Use the sea surface temperatures for the equatorial pacific to justify your answer.


Farthest Right: DOL

DOL: click here to complete Investigating El Niño Using Real Data.

Complete all questions for Levels 1-5. Number the questions, and identify answer choices as A, B, C, D

hurricanes

Click here to study Hurricanes

Study wind and how hurricanes form. Then collect and analyze data to predict the strength of a hurricane at landfall.

Air Pressure and Wind Speed

1. Create a table to record barometric pressure and wind speed. 

2.Wind speed can be calculated by counting the number of rotations of the anemometer in 10 secs. Work with your partner.

 

convert revolutions per minute (RPM) to miles per hour (MPH). Assume the diameter of the anemometer is 2 feet

2 feet X (pi)3.14 = 6.28 feet/revolution x   1 mile            = .00118939 miles/revolutions

                                                               5280 ft

# revolutions     X  60 second   x 60 min  x .00118939 miles  = ___________ mph 

  10 seconds         1 min             1hr                revolution

Barometric pressure  city A	Barometric pressure  city B	Difference in pressure	Revolutions in 10 seconds	Wind Speed (MPH)
1040 millibars	1000 millibars	40 millibars	21	8.99 MPH (check it!)

 Questions

a. What's the relationship between the difference in temperature and wind speed? As the difference in pressure increases/decreases, what happens to wind speed?

Global Wind Belts

1. Where does convection drive wind? How does it work (what does the hot air do, what does the cold air do)?

2. Look at current flow and tell me does the wind current flow west (left) or east (right) in:

a. The northern United States and Canada?

b. The southern United States and Central America?

c. Brazil

d. Argentina

Storm Surge

1. How high must the winds be to cause a 7 ft storm surge?

2. How high are the winds in a category 1 hurricane?

3. How high must the winds be to cause the 13 ft storm surge associated with Category 1 hurricanes?

Tropical Storms

1. How are clouds formed?

2. Which is stronger tropical storm or hurricane?

3. How do tropical storms and hurricanes gain strength?

4. At what temperature was the hurricane strongest? At what temperature did the hurricane dissipate or disappear?

Segments 9-16 are the DOL

Hatching Brine Shrimp

Brine Shrimp Hatching Experiment

Brine Shrimp (Artemia franciscana) are small shrimp that live in extremely salty water such as The Great Salt Lake in Utah. Brine Shrimp can be bought at any pet store, will hatch within 24 hours, and become mature in about a week. Because of these qualities, working with Brine Shrimp can help us learn how to design a good experiment.

You will design an experiment that will tell you something about how environmental variables affect the hatching of Brine Shrimp. For example, is the saltiness (salinity) of the water important? How much food is necessary? The primary food source for brine shrimp is yeast.

If you design your experiment carefully you will be able to answer one of these questions by counting the number of shrimp that hatched under different conditions. Listed below are the independent variables that we will be looking at as a class. Each of you will be focusing on one of these variables (good experimental design only focuses on one independent variable at a time).

Salinity (saltiness)

Yeast concentration

When we design an experiment we want to think about comparing a Control group and a Treatment group. The control is what might be called the normal conditions and the treatment is what we changed to test the variable we want to study.

For example, if we want to test the effect of salinity on hatching, we would compare how brine shrimp hatch under normal conditions, which is in high salinity (very salty) water, to how they hatch low salinity (fresh) water. Sea water is an average of 3.5% saline. In this case the control is high salinity and the treatment is the solutions of decreasing salinity.

In this experiment we want everything else to be the same between the control and the treatment groups except for the one variable that we want to study. If you are studying the effect of the food supply, then control your salinity. If you are studying the effect of salinity, then control your food supply. Good luck. The best hatchers earn bonus points on this assignment. We will write a complete lab report next week.

This is a picture of the supplies for your lab report.

Format for Lab Report

Introduction (25 points)

Consists of:

1.    Purpose statement: The hint is to look at the LO. A sentence stem looks something like, “The purpose of this lab…”

2.    Three supporting details. Look at your resources or Freyer Model.

3.    Ends with a hypothesis. Make a specific, testable prediction about what will happen. Quantitative not Qualitative.

Procedure (25 points)
Consists of:

1.A materials list

2. Step by step, numbered instructions for how to conduct this lab

Results (25 points)

Consists of:

1.    Data Table and Graph

2.    Written explanation of the data table and graph.

Conclusions (25 points)

Consists of:

1.    A statement about whether the data supports or contradicts your hypothesis.

2.    Explanation of why this occurred. What went right? Wrong?

3.    What you would do differently if this experiment where repeated.