Are you ready for another great week? I have some fun things planned for you to do. In math, we will review what we talked about with factoring, prime factorization, and finding the GCF of a set of numbers. We will have a quiz on these topic on Wednesday, so please review your notes and ask for further review lessons if you are still unsure about any of it. You will also be asked to complete another Accelerated Math activity. Please input this into the computer sometime this week to be graded.
In science, we will start out the week talking about the characteristics of soil found in different climate zones. Mr. Brandon will be back to do a lab about finding PH, and Ms. Fe will talk to you about soil, too. Your "Rake the Leaves" choice sheet is due on Friday. Also, we will be having our final test on soil Friday. Be sure to review your notes, followup work, and the study guide that I gave you last monday (I'll copy/paste it at the end of this blog posting for you).
I received a box of your In2Books books Friday afternoon! I'm sure you are excited to get them, get reading, and discuss them with your penpal. I'll be sure to give them to you on Monday.
We will have a firedrill on Wednesday to celebration National Fire Safety Week. Here is a fun quiz you can take to test your fire safety knowledge. Speaking of testing, have you asked your parents if they have tested their smoke alarm lately? I just checked mine two weeks ago, and the battery was dead!
Finally, for the month of October, we will have a NEW CLASSROOM PET! He will be waiting for you on the entry table when you arrive Monday morning.
See you tomorrow,
soil- a loose mixture of rock fragments, organic material, water, and air that can support the growth of vegetation
soil structure- the arrangement of soil particles
soil texture- the soil quality that is based on the proportions of soil particles
bedrock- the layer of rock beneath soil
humus- dark, organic material formed in soil from the decaying remains of plants and animals
leaching- the removal of substances that can be dissolved from rock, ore, or layers of soil due to passing of water
parent rock- a rock formation that is the source of soil
Soil Study Guide
Weathering (rock materials are broken down)
1. chemical weathering (weak acids, air)
2. mechanical weathering (ice, plants, abrasion)
Soil (loose mixture of rock, organic material, water, and air)
1. residual soil- remain above parent rock
2. transported soil- blown or washed away from parent rock
3. Soil Horizons (See diagram)
4. Soil and Climate
a. Tropical Rain Forest- Nutrient poor soil because of leaching, thin topsoil, and lush vegetation with great demand for nutrients
b. Desert- low rate of weathering means soil is created at a slower rate
c. Temperate Forest and Grasslands- Some of the most productive in the world because of high level of weathering (moderate rain, freezing temperatures).
d. Arctic- Slow soil formation. Little rain and cold temperatures cause animals/plants to decompose slowly. Little humus.
5. Soil Conservation
a. Ways to stop erosion (loss of topsoil)
i. contour plowing- plow across the slope of hills
ii. crop rotation- planting different crops from year to year to use less nutrients