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Final Exam
8th Grade Earth Science
| Question | Answer |
|---|---|
| What is the Atomic Number? | Number of protons in the nucleus of an atom |
| What are protons? | Positive |
| What are neutrons? | Neutral |
| What is the Nucleus? | the core of an atom; where most of the mass of the atom exists |
| What is the Nucleus made of? | Protons and Neutrons |
| What is Atomic Mass? | the number of protons plus neutrons |
| What are Electrons? | Electrons are negative and they move around the nucleus |
| What are the layers of the earth from thickest to thinnest? | Mantle, outer Core, Inner Core, Crust |
| What are the layers of the earth from outside to inside? | Crust, Mantel, Outer Core, Inner core |
| Whats the Crust made of? | earths surface and continental/oceanic plates; where we live |
| Whats the Mantel made of? | Molten Rock |
| Whats the Outer Core made of? | Liquid nickel and iron |
| Whats the Inner Core made of? | Solid nickel and iron |
| How do Geologists know about the interior of the Earth? | Seismic Waves |
| What is erosion? | Transport of weathered material |
| What are some examples of erosion? | Carving a canyon by running water/ formation of underground caverns by water/ landslide |
| What is Mechanical Weathering? | The physical breakdown |
| Examples of Mechanical Weathering | Roots breaking rocks and water freezing and expanding to break a rock |
| What is Chemical Weathering? | Chemically breaks down and changes a substance |
| Examples of Chemical Weathering | Acid water dissolving rock |
| What are minerals made of? | Crystals |
| What are rocks made of? | Minerals |
| What are the properties of a Mineral? | Hardness, luster, color, streak, cleavage/fracture, and density |
| What are the three types of rocks? | Igneous, Metamorphic, and Sedimentary |
| How is an Igneous rock formed? | Formed when magma/lava from a volcano cools and hardens |
| How is a Metamorphic rock formed? | Formed through heat and pressure |
| How is a Sedimentary rock formed? | Formed through weathering/erosion and then compaction/cementation |
| What do Topographic Maps show? | Elevation |
| What are Contour lines? | Lines that connect points of equal elevation on a Topographic map |
| When the contour lines are close together, what does that mean? | Steep elevation |
| How do tectonic plates move? | Convection Currents |
| What are the three type of tectonic plate boundaries? | Transform boundaries, Convergent boundaries, and Divergent boundaries |
| What do tectonic plates do at transform boundaries? | Slide past each other |
| What do tectonics plates do at convergent boundaries? | Move toward each other |
| What do tectonic plates do at divergent boundaries? | Move apart from each other |
| How are the Moon, Sun, and Earth positioned during a Lunar Eclipse? | Sun, Earth, Moon |
| How are the Moon, Sun, and Earth positioned during a Solar Eclipse? | Sun, Moon, Earth |
| What causes the seasons? | The tilt of the Earth |
| What is the order of the planets? | MY VERY EDUCATED MOTHER JUST SERVED US NACHOS-Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, |
| What are the inner planets? | Mercury, Venus, Earth, Mars |
| What are the outer planets? | Jupiter, Saturn, Uranus, Neptune |
| What is the difference between the inner and outer planets? | The inner planets are small and do not have rings, unlike the inner planets the outer planets are gas giants and all have rings. |
Created by:
cayla.jolie
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