study for HHH sixth grade science final
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| nucleus | the control center of the cell, controls heredity of traits, known as brain of cell
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| mitochondria | powerhouse of the cell, where energy is made
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| cell membrane | controls the passage of nutrients in and out of the cell
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| chromosomes | X shaped, made of DNA, in nucleus, contains protein recipes
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| cell wall | only in plant cell, provides support
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| ribosomes | reads recipes for making protein
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| chloroplast | only in plant cells, where food is made and photosynthesis happens
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| vacuole | stores water and nutrients
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| cytoplasm | jelly-like fluid that holds organelles together and allows movement in the cell
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| DNA | carries code which produces proteins and controls cell activity
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| endoplasmic reticulum | transport system (transports ribosomes)
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| asexual reproduction | a single cell reproduces alone by splitting
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| sexual reproduction | an egg and sperm joining
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| fertilization | the process of a sperm and egg making a zygote
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| number of chromosomes in human body cell | 46
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| number of chromosomes in human sex cell | 46
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| number of chromosomes passed on by a single parent | 23
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| two types of cells | egg and sperm
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| meiosis | cell division that makes sex cells and produces eggs and sperms that have half the number of chromosomes
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| mitosis | the process of cell division that results in the production of two identical cells from a single parent (identical twins)
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| hybrid | Bb
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| pure recessive | bb
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| pure dominant | BB
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| phenotype | physical appearance
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| genotype | genetic make-up
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| genetic engineering | transfering a gene from one organism to another
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| selective breeding | choosing to mate two organisms to get desired results
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| genes | segments of chromosomes that are recipes for specific traits
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| mutation | the change in the sequence of the order of bases in a genetic code, result of abnormal cell division (cancer)
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| hydrogen bonds | holds nitrogen bases together
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| nitrogen bases | adenine, thymine, guanine, cytosine
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| deoxyribose sugar | at the ends of the nitrogen bases
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| phosphate | ends of DNA
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| order of cellular organization | cells, tissues, organs, organ systems, organism
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| drosophila | fruit fly
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| male drosophila | few or no stripes, small as adult, sex combs, round abdomen
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| female drosophila | stripes, large as adult, no sex combs, pointy abdomen
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| make a wet-mount slide | put liquid on slide, put on specimen, hold slide of 45 degree angle, drop cover slip
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| find total magnification | multiply eyepiece by objective lens
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| weather | daily conditions in the earth's atmosphere
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| climate | weather in an area over a long period of time
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| meteorologist | someone who studies and predicts conditions in the atmosphere
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| uneven heating | the major cause for weather on earth
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| four factors that effect weather | wind, heat energy, air pressure, moisture
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| how does weather generally move across the US | air masses moving west to east
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| hydrosphere | water
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| lithosphere | earth
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| atmosphere | air
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| troposphere | the layer we live in
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| barometer | measures air pressure in milibars (high) or inches of mercury (low)
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| anemometer | measures wind speed in miles per hour or knots
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| sling sychrometer | measures relative humidity in degrees first, then percent
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| wind vane | measures wind direction in north, south, east, and west
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| thermometer | measures temperature in degrees celsius
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| instruments for measuring weather | weather balloons, wind sock, satalite, climate, clouds, dopplerator
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| air mass | a large body of air that is described by its moisture, content, and temperature
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| gases in the earth and percentages | 78% nitro, 21% oxygen, 1% other
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| continental tropical | air mass over warm land, high temperature, and dry moisture
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| continental polar | air mass over cold land, low temperature, and dry moisture
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| maritime tropical | air mass over warm water, high temperature, and wet moisture
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| maritime polar | air mass over cold water, low temperature, and wet moisture
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| front | where two air masses meet. some sort of precipitation occurs
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| cold front | line with triangles, heavy precipitation
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| warm front | line with circles, light precipitation
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| stationary front | line with triangles and circles, precipitation over many days
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| convection | transfer of heat through air or liquid (hot air rises, cold air sinks) ((hot air balloon))
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| conduction | transfer of heat through irect contact (your feet on a warm, sandy beach)
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| radiation | transfer of heat through electromagnetic waves (sun bathing)
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| how does energy from the sun reach the earth? | radiation
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| high air pressure | brings clear, sunny, fair weather (at sea level)
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| low air pressure | brings cloudy, wet, stormy weather (top of a mountain)
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| three things that effect air pressure | elevation, temperature, water vapor
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| hurricanes | form over warm water. evacuate, board up windows, and secure outdoor furniture
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| tornadoes | form over land with high winds and low air pressure. seek shelter underground
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| thunderstorm | produces strong winds, heavy clouds, lightening and thunder. seek shelter indoors
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| greenhouse effect | when gases like co2 and methane trap heat on earth
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| global warming | the earth's temperature slowly rising, caused by the burning of fossil fuels which creates greenhouse gases and cause unven heating, death, glaciers melting, and sea levels rising
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| fossil fuels | remains of dead plants and animals that lived millions and millions of years ago, are non renewable, and are coal, oil, and natural gas
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| alternate energy sources | solar power, wind power, biomass, tydopower, hydroelectricity, giothermal, nd nucleur power
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| ozone gases | gases in the atmosphere ghat block harmful UVA and UVB rays
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| transpiration | evaporation off of trees
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| simple machines | help us do work
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| lever | a rigid bar free to pivot about a fixed point called a fulcrum. (hammer)
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| inclined plane | a flat, slanted surface (stairs or ramp)
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| wheel and axle | made of two cylindrical objects fastened together and rotate on a common axis (door knob)
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| pully | a grooved wheel with a rope, chain, or steel cable wrapped around it (flag pole)
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| screw | an inclined plane wrapped arounda cylinder (light bulb)
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| wedge | thick on one end and tapers to a thin edge on the other (axe)
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| compound machine | two or more simple machines working together
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| formula for speed | speed = distance divided by time
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| balanced forces | forces that keep the object's motion the same
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| unbalanced forces | forces that change and objects motion
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| velocity | speed in a given direction
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| acceleration | speed up, slow down, or change direction
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| two factors of gravitational attraction | mass and distance
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| friction | opposes motion and slows things down
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| kinetic energy | energy designed for movement (hitting a tennis ball)
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| potential energy | stored energy effected by position (a golf ball on a tee)
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| gravity | keeps planets in orbit
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| when on the moon your _____ stays the same but your ________ changes | 1: mass 2:weight
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| renewable resource | can be replaced by nature (paper)
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| non renewable resource | cannot be replaced by nature (petrochemicals)
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| problem | the question you ant to answer
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| hypothesis | and educated guess
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| materials | aupplies you need to conduct the experiment
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| variable | factor being tested
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| control group | does not recieve independant variable
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| experimental group | recieves independant variable
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| conclusion | the experiment results
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| find volume | length times width times height
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| beaker | measures volume in mL
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| graduated cylinder | measures volume of liquid/solid in mL or cm3
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| triple beam balance | measures mass in grams
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| newton spring scale | measures force in newtons
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| pipet | measures small amounts of liquid in mL
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| ruler | measures length, width, and height in milimeters, centimeters, and meters
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| find volume of irregular shaped solid | -pour 50mL of water into graduated cylinder (initial volume)-hold graduated cylinder on an angle and drop object in-read meniscus. this is your final volume-subtract initial volume from final volume-write volume in cubic centimeters
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
lindsala24
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