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STAAR Review
| Question | Answer |
|---|---|
| proton | A positive particle in an atom's nucleus |
| neutron | A neutral particle in an atom's nucleus |
| electron | A negative particle in an atom's orbitals |
| valence electron | The outermost electrons that create chemical bonds |
| nucleus | The atom's center core. |
| reactants | left of the arrow |
| products | right of the arrow |
| Law of Conservation of Mass | Matter is not created nor destroyed |
| How does the valence electrons changes left to right across the Periodic Table? | increases 1 to 8 |
| Most reactive (least stable) group of the periodic table | Group 1 |
| Least reactive (most stable) group of the periodic table | Group 18 |
| How does the bold line divide the Periodic Table? | Left of the line is metals; right is nonmetals; above/below metalloids |
| How many elements are in C6H12O6? | 3 |
| How do you count elements? | count the symobls |
| How many hydrogen atoms are in 2C4H7NO4? | 14 |
| How do you count atoms? | multiply coefficient x subscript |
| First Law of Motion | An object at rest remains at rest and an object in motion remains in motion unless acted upon by an unbalanced force. |
| Second Law of Motion | Force = mass x acceleration |
| Third Law of Motion | For every action there is an equal and opposite reaction |
| Potential energy | stored energy |
| Give an example of potential energy | stress building in earth's plates; top of the roller coaster |
| kinetic energy | moving energy |
| Give an example of kinetic energy | earthquakes; roller coaster going down the hill |
| What 2 parts are only in a plant cell? What is their role? | cholorplast - photosynthesis cell wall - rigid outer most layer |
| abiotic | nonliving factor (light, water, soil, etc) |
| biotic | living factros (plants, animals, fungi,etc) |
| producer | make their own food (plants) radiant to chemical energy |
| primary consumer | herbivores (plant eaters) |
| secondary consumer | carnivore (meat eater) or omnivore (eats both met and plants) |
| decomposer | breaksdown and recycles nutrients |
| mutualism | both species benefit |
| commensalism | one benefits and other not effected |
| parasitism | one benefits and one is harmed |
| primary succession | begins with bare rock |
| secondary succession | begins with soil |
| What causes the seasons? | Earth's tilt |
| spring tide | occurs new moon and full moon; huge change between high and low tides |
| neap tide | occurs at 1st and 3rd quarter; not a big change between tides |
| light year | the distance light travels in one year. |
| Theory of Continental Drift | The theory proposed by Alfred Wegener that the contients were moving; support by evidence from landforms, fossils, and climate |
| The Theory of Plate Tectonics | Earth's crust is divided into plates and the plates are moving because of convection currents in the mantle |
| Convergent boundaries | plates collide; continental/continental forms mountains; continental/oceanic forms subduction zones |
| Divergent boundaries | plates move apart; mid ocean ridge underwater and rift valley on the land |
| Transform boundaries | slide past; create earthquakes |
Created by:
lschramme
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