Tuesday, 4 February 2014

Groundwater Appreciation Class Scribe Post

Action Agenda:

On the afternoon of Tuesday the fourth, 2014 A.D., our Block 8 science class commenced with some reminders and notifications concerning our upcoming Middle School Science Fair , and our routine science unit test. Following this session, Mr. Pro presented a news article on the current heat wave ravaging our city, and the water shortage announcement that our government posted. After a brief, and unexpected political discussion about Brazil's environmental problems, a science scribe election was held. Once our scribe order was decided, we proceeded to move on to a brief, in-class experiment. This experiment stood as an example for a science fair experiment. After that, we proceeded to a discussion on wells, groundwater, and possible dangers surrounding well locations. Following this discussion, we completed a short task in our notebooks about possible problems that can occur with irresponsible well placement. Soon after this task (and multiple water breaks requests), we watched a short Brainpop video on groundwater. Right after this video, we immediately went on to filling out a form using pages 300-304 of the McDougal Littel Earth Science textbook (also known as the "yellow one").  25 minutes later, we began to go over answers as a class. At 3:04 p.m., we started to watch a short video called BBC Human Planet: Desert on water in the desert. In the video, we learned about how villagers in the desert used groundwater, simple tools and mining to create towns, and support life by designing underground water canals and wells. When the clock struck 3:10, the class was dismissed and everyone charged out the door. 

Class Content:
We identified the properties of water that make it an essential component of the Earth system (e.g., its ability to act as a solvent, its ability to remain as a liquid at most Earth temperatures).

Class Skills:
Reading Comprehension
          Read scientific texts and summarize using own language.

Study Skills
          To use question and answers to prepare for a test.

In-Class Demonstration:
Research Question: How much salt can dissolve in hot and cool water? What is the relationship temperature and solubility?

Independent Variable: temperature (70 and 25 degrees Celsius
Dependent Variable: mass of salt
Control Variables: the same volume of water (100mL)

Hypothesis: As the temperature of the water increases, the amount of salt dissolved would_increase/decrease/stay the same____.

Materials Used: 
                        2 250 mL beakers
                        di-hydrogen oxide
                        hot plate
                       2 thermometers
                       salt
         

Experiment Images:







Groundwater Form Answer Examples: 

Example 1: Type of rock and soil, climate, topography, vegetation, and how people use the land all affect the amount of water.

Example 2: Porosity is how much space there is in a material. For example, cheese may be porous or non-porous. Cheddar cheese is non-porous - it has no holes. It has zero porosity. Swiss cheese however is porous. It may have 10% porosity.

Example 3: Permeability is how fast water goes through something. A permeable surface, such as sand, may allow water to pass through very quickly. A non-permeable substance, such as plastic or granite rock, may not allow water to pass at all.

Important Links: 

Day Planner: Science Blog Link

Science Fair Guidelines and Rubric: Google Doc Link

Reuters News Article: Web Article Link

In-Class Experiment: Google Doc Demo Link

Groundwater Notebook Task: Google Doc Link

Brainpop Digital Resource: Video Link

Groundwater Computed Form: Google Form Link

Groundwater Computed Form Answer Key: Google Form Answer Key Link

Test Studying Link: Google Doc Link


Additional Images:












1 comment:

  1. Alexandre, your post is great! You have lots of detailed information about the science class. One thing I think you can improve is by adding more photos to your post. Your post has only 4 photos, and so visually when someone looks at your post, the first thing they will see is the amount of text you have. So many people will pass by it and not read because they don't know about the goof information you have in there and they will be lazy to read it. Lastly, adding more photos causes your post to be great visually since it is already great in information content.

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