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1st quarter sci test
6th grade science
| Question | Answer |
|---|---|
| pure substance found in nature (gold, silver, oxygen, hydrogen) | element |
| the simplest structures of a substance | molecule |
| when liquid turns into water vapor | evaporate |
| when water vapor becomes liquid water | condensate |
| droplets large enough to drop (any form of water that falls from clouds and reaches earth's surface | precipitate |
| what percent of atmosphere is oxygen | 21 |
| what percent of atmosphere is nitrogen | 78 |
| what percent of atmospher is other trace gases | 1 |
| water droplets | steam |
| breathable oxygen | O2 |
| ozone | O3 |
| water in the form of gas | water vapor |
| what is needed for fuel to burn | oxygen |
| what are clouds made of? | Liquid water |
| three states water | ice, water, steam |
| the condition of earths atmosphere at certain times | weather |
| most abundant gas in the atmosphere (78%) | nitrogen |
| secondmost abundant gas in the atmosphere (21%) | oxygen |
| name some other trace gases in the atmosphere | hydrogen, argon, carbon dioxide, neon, helium, methane, krypton |
| how good something is | quality |
| what is needed for organisms to decay | oxygen |
| harmful substance in the air, dirt, or soil | pollutant |
| examples of fossil fuels | coal, oil, natural gas |
| elevation above sea level | altitude |
| never living | inorganic |
| living or once living | organic |
| forms when nitrogen oxide combines withthe sulfur oxide to become nitric acid and sulfuric acid | acid rain |
| how is acid rain formed | nitrogen oxide combines with sulfur oxide to become nitric acid and suluric acid |
| H2O + SO2 = | H2SO3 (acid rain) |
| stuff in the universe made up of elements | matter |
| three states of matter | solid, liquid, gas) |
| amount of matter (stuff) in an object | mass |
| solid particles in the air | smoke |
| the force pushing on an area or surface | pressure |
| the weight of a column of air above you | air pressure |
| instrument that is used to measure changes in air pressure | barometer |
| lowest visible ground | sea level |
| where is air pressure greatest | sea level |
| where do fossil fuels come from | the ground |
| burnable matter that is used to burn energy | fuel |
| all fossil fuels contain ________ | hydrocarbons (combination of H and C) |
| northern lights | aurora borealis |
| aurora borealis | a colorful glowing dispay in the sky caused when particles from the sun strike oxygen and nitrogen atoms in the ionsphere; northern lights |
| list the layers of the atmosphere | troposphere, stratosphere, mesosphere, thermosphere, ionosphere, exosphere |
| in which layer does weather occur | troposphere |
| layer at the top of the stratosphere | ozone |
| protects us from UV rays | ozone |
| layer that bounces radio waves | ionsphere |
| layer that contains the ozone | stratosphere |
| coldest layer | mesosphere |
| layer where most satellites orbit | exosphere |
| layer with the warmest molecules | thermosphere |
| layer with the fewest gas molecules | exosphere |
| layer with the most gas molecules | troposphere |
| name the two parts of the thermosphere | ionosphere and exosphere |
| what keeps satellites in orbit | gravity |
| shooting stars | meteors |
| which layer protects the earth from meteors | mesopshere |
| when a meteor hits the earth | meteorite |
| display of colors of electromagnetic energy | spectrum |
| absorbs most of the UV rays | ozone layer |
| as altitude increases temperature ________ | decreases |
| as altitude decreases temperature _________ | increases |
| what kind of light scatters easily | light with shorter wavelenghts |
| where do we get heat from | energy from the sun |
| gases in our atmosphere that trap heat from the sum | greenhouse gases |
| symbols of greenhouse gases | CO2, H2O, CH4 |
| T or F Greenhouse gases cause global warming | false |
| T or F greenhouse gases keep us warm | true |
| EM | electromagnetic |
| how does EM travel | through waves |
| distance between waves | wavelength |
| what determines colors | wavelengths |
| the sun's energy is _____________ _________ | electromagnetic energy (EM energy) |
| name two types of radiation unable to be seen | ultraviolet and infrared |
| infrared radiation is too _________ to be seen | long |
| ultraviolet radiation is too ________ to be seen | short |
| how can we use infrared lights | to warm things like food |
| how do ultraviolet rays harm us | sunburns, skin cancer, eye damage |
| visible light | whate light |
| which rays warm | infrared |
| which rays burn | ultraviolet (UV) |
| shortest color wavelength | violet |
| longest color wavelength | red |
| all the colors of the rainbow | white light |
| colors of the rainbow | Roy G BV (red, orange, yellow, green, blue, violet) |
| what % of the atmosphere is CO2 | 0.036 % |
| what color wavelengths scatter easy | blue |
| process by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane, and other gases that forms a blanket around earth | greenhouse effect |
| total energy of motion in a surface | thermal energy |
| thermometer used in science | celsius |
| at what temperature does water freeze (Celsius) | 0* |
| At what temperature does water boil (Celsius) | 100* |
| thermometer used in the US | Fahrenheit |
| temperature that water freezes (fahrenheit | 32* |
| temperature that water boils (fahrneheit | 212* |
| 3 ways that heat is transferred | radiation, conduction, convection |
| the direct transfer of heat by touching an object with fast moving molecules | conduction |
| travels in waves but spreads out as it warms the air as it travels | radiation |
| direct transfer of energy by electromagnetic waves (from the sun) | radiation |
| liquids and gases | fluid |
| have the ability to flow | fluids |
| the transfer of heat by the movement of fluids | convection |
| heat = _____________________ | energy |
| energy = _____________________ | heat |
| name 2 types of thermometers | celsius, fahrenheit |
| evergreen loses leaves all at one time; always green | deciduous |
| organisms that live on another organism and breaks them down | decomposers |
| place where animals and plants live; natural environment (log, pond, ocean) | habitat |
| vessel used to carry food from the leaves to the rest of the tree | phloem |
| the vessel used to carry water throughout a plant or tree | xylem |
| ability to adjust or fit into changes in their environment | adaptation |
| all the animals that live in a particular region | fauna |
| all the plants that live in a particular area | flora |
| entire world of life and the environment that supports it (earth) | biosphere |
| a living organism that has the ability to give off light | bioluminescence |
| the color sensitive part of the eye | cones |
| eyes that have adjusted to the dark | night vision |
| animals that are active at night | nocturnal |
| the part of the eye that is sensitive to light | rods |
| working environment with plants and animals within a location | ecosystem |
| a system made up of a community plants and animals and their interactions to keel a habitat balanced | ecosystem |
| major life zones; types of plants and animals that live in a certain place controlled by climate (desert, forest, rain forest, tundra, swamp) | biomes |
| animals that active during the day | diurnal |
Created by:
Laraannemc
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