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.
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).
Read scientific texts and summarize using own language.
To use question and answers to prepare for a test.
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____.
2 250 mL beakers
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.
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