Friday, April 5, 2013

Soil Erosion

Today my students participated in two activities that demonstrated soil erosion and how we can prevent it from occurring.   For the first activity we went outside and watched it 'rain' (poured water from a watering can) on bare soil.  We observed the run off and determined that we lost quite a bit of soil.  Before the second rain, we brainstormed ways to prevent the erosion.  They decided we needed plants so we placed grass clippings on the bare soil.  The second time it 'rained', the run off was much cleaner. 

The second activity was a conservation play.  The objective of the play is to show the importance of conservation.  The students have different roles to play such as raindrops, soil, lake and conservation.  The first time through, there isn't any conservation so the raindrops move quickly and they take the soil with them.  When they end up at the lake, the soil stays in the lake while the raindrops end up in the ocean.  This makes the lake dirty and the plants die because the soil was washed away.  The second time through, the conservation student only lets the raindrops go one at a time so they can't pick up the soil students.  The lake stays clean and the plants survive.  After the play, the students watched a powerpoint showing various conservation techniques. 

The lake is clean!!! :)

Tuesday, April 2, 2013

AR Reading Goal Dates

25% April 3rd
50% April 17th
75%  May 1st
100% May 10th

Adventures in Science

4th graders are busy preparing for the state science assessment. The students will take the test on April 23rd and 24th. During computer time, we are using the science section of Study Island to help prepare for the science assessment.  If possible, please encourage your child to utilize Study Island at home as well.
In science, we have been studying the water cycle, rocks and conservation. During our water cycle unit, students became raindrops and went on a journey to better understand how the water cycle works.  Each student wrote a story about their adventure as a raindrop.  In order to help the students prepare for the math and science assessments, they observed, classified and measured rocks.  For our conservation unit, the students first cut apart an apple to show how much of the earth’s surface is actually used for food production.  The students also watched an experiment showing soil erosion by water and they participated in a conservation play.  After the science assessment, the students will create a conservation poster for the Greenwood County Conservation District poster contest.