The document discusses changes to the Texas Essential Knowledge and Skills (TEKS) science standards between the 2010-2011 school years. It notes several topics that are no longer included in elementary standards like the rock cycle, periodic table, simple machines, and body systems. New additions to the standards include using spring scales to measure weight in Newtons in 3rd grade, a focus on energy, and teaching magnets by attraction and repulsion without electron paths from K-2. Climate is taught separately from weather without discussion of the atmosphere.