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FallSemReview
Fall Semester Review
| Question | Answer |
|---|---|
| A ________________ is a positive (+) particle located in the an atom’s nucleus. | proton |
| A ___________________________ is a neutral particle located in the atom’s. | neutron |
| An __________________ is a negative (-) particle located in the atom’s orbitals. | electron |
| An atom is __________________________ because it contains equal numbers of protons and electrons. | neutral |
| The periodic table has grown to include over 100 elements. Once you understand how the periodic table is organized, you can predict an element’s ___________________________ from its position on the table. | properties |
| In the modern periodic table, the elements are arranged according to their _______________________________________________. | atomic number |
| __________________________ are columns (families) in the periodic table. | Groups |
| __________________ are rows in the periodic table. | Periods |
| ____________________________ share the same number of valence electrons. | Groups |
| The number of valence electrons _______________ from left to right across rows. | increases |
| A __________________________ change is when a NEW substance is formed in a chemical reaction. (Ex: burning wood) | chemical |
| A ____________________________ is a substance made of two or more elements that have been chemically combined. (Ex: table salt, water, baking soda.) | compound |
| ____________________________ are the beginning substances (left of arrow) in a chemical reaction. | Reactants |
| __________________________ are the ending substances (right of arrow) in a chemical reaction. | Products |
| The _______________________________states that the reactants mass equals products mass. (Matter can not be created nor destroyed.) | Law of Conservation of Mass |
| The formula for speed is ________________________________. | distance/time |
| __________________________________states that an object at rest will stay at rest unless acted on by an unbalanced force. | Newton's First Law of Motion |
| Newton’s second law of motion states Force = ___________ x ____________. | mass x accerlation |
| Newton’s _______________ law of motion states that for every action there is an equal and opposite reaction. | third |
| Temperature and pressure ____________________ as you move from the crust toward the inner core. | increase |
| Earth’s magnetic field – a force that causes the planet to act like a giant bar magnet- is created by convection currents in the liquid _______________. | outer core |
| Wegener's idea that the continents slowly moved over Earth’s surface became known as ______________________. | continental drift |
| Wegener named this supercontinent __________________. | Pangaea |
| Wegener gathered evidence from different scientific fields to support his ideas about continental drift. In particular, he studied ___________, ____________, and evidence that showed how Earth’s ________________ had changed over many millions of years. | landforms, fossils, climate |
| Wegner could not provide a satisfactory explanation for the force that pushes or pulls the continents. Because Wegener could not identify the cause of continental drift, most geologist ____________________ the idea. | rejected |
| The ______________________________ is the longest chain of mountains in the worlds. | mid-ocean ridge |
| At the _______________________________, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. | mid-ocean ridge |
| _______________ is the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle. | Subduction |
| ________________________ is the geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion, driven by convection currents in the mantle. | Plate tectonics |
| A ___________________ boundary is a place where two plates slip past each other, moving in opposite directions. Earthquakes occur frequently along theses boundaries. | transform |
| The place where two plates move apart, or diverge, is called a _________________ boundary. | divergent |
| The place where two plates come together, or converge, is called a _______________________ boundary. | convergent |
| A collision between two pieces of continental crust at a convergent boundary produces ____________________________. | mountains |
| The formula for density is: Density = _________________. | mass/volume |
Created by:
lschramme
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