Grade 6: these classes will study about the Earth's atmosphere, the weather, and relationship between ocean currents and weather patterns. When we see clouds, we "know" what the weather may be too. Here we will have our budding meteorologists.
Grade 7: these classes will explore what cannot be seen...CELLS; not cell phones, but the make-up of plant and animal cells. Cell theory will be highlighted and explored in greater depth. 
Grade 8: these classes will start with the other basic building blocks of our universe...MATTER, ATOMS, and ELEMENTS. When you ask yourself "What's the matter?" now you have more answers. 