1. What is the flu vaccine and how is it created? 2. Why is each year's vaccine different? Use your research to support your
answer.
3. How does the flu vaccine continue to evolve?
4. How does the flu shot relate to chemistry?

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic