A decent set of "explanatory" articles over popular science topics. Many of the articles carry rather relevant material to connect with specific standards along the way...
This article helps to bring relevance to why we should study soil and erosion,as well as, possible solution(s) for erosion problems. Aligns with 5.2.A.c, 5.3.A.c and 5.1.A.a
Simple lesson to review simple machines. It's tagged for 3rd - 5th grade, but could work for a quick review. It has a card sort activity ready to go. The agricultural examples might not be 100% relevant to all kids, but still useful.
In this "Ask an Astronomer" episode (03:05), Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.
Instantly converts length, area, volume, weight, temperature,fuel efficiency and power. Includes US customary and metric system. Helpful site for measurement unit.
This could be a pretty slick little inquiry lab that students could tend to (collect data from) for a few minutes of time each day over the course of a unit...