7th Grade Spring Final

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

The outermost solid layer of the Earth is called the

• mantle
• outer core
• inner core
• crust

The driving force of the tectonic plates are convection currents, where can these be found?

• inner core
  inner core
• crust
• mantle
• outer core

Compacting and cementing of sediments can also be called

• stratification
• sedimentariation
• lithification
• metamorphism

Which type of rock results from melting and cooling of magma?

• Igneous
• Metamorphic
• Sedimentary
• Extrusive

A metamorphic rock changes into an igneous rock by what two processes?

• Melting and cooling
• Extreme heat and pressure
• Compaction and cementation
• Weathering and erosion

In what organelle is the genetic material found inside?
 

• Endoplasmic Reticulum
• Golgi Complex
• Nucleolus
• Nucleus

What organelle is called the "powerhouse" of a cell?

• Endoplasmic Reticulum
• Nucleus
• Mitochondria
• Nucleolus