Keep it Simple Science
The Earth in Space
Skim the surface of the earth with this brief, compact, summary of outer space. The sun, stars, galaxies, planets, and phases of the moon can be found in this all-in-one resource. Seventh graders will enjoy these simple worksheets to do...
Science 4 Inquiry
The Impact of the Sun and Moon on Tides
In 150 BC, Seleucus of Seleucia theorized that the moon causes the tides. Scholars learn about what causes tides by studying the interactions of gravity between the sun, moon, and Earth. They use technology to formalize otherwise...