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7th Grade Science

7th Grade Science Exam 1 Mr Barrett

QuestionAnswer
List 5 Dos for working in a science lab 1 WEAR GOGGLES 2 HAIR BACK 3 GLOVES 4 CLOSED TOE SHOES 5 RESPONSIBILITY
Independent Variable THE PART OF THE EXPERIMENT YOU CHANGE ON PURPOSE
Dependent Variable THE CHANGE THAT OCCURS AS A RESULT OF THE CHANGE MADE FOR THE INDEPENDENT VARIABLE
Constants A FACTOR IN AN EXPERIMENT THAT DOES NOT CHANGE EX: ON THE DECAY OF A FRUIT AN APPLE WOULD BE THE CONSTANT
Control Group A GROUP USED AS A BASELINE FOR CHECKING AND CMOPARING THE RESULTS OF AN EXPERIMENT EX: GIVE SOMEONE A SUGAR PILL AND SOMEON AN ENERGY PILL
Quantitative Observations/Data DATA THAT DEAL WITH NUMBERS AND MEASUREMENTS EX: IN A FIRST GRADE CLASS THERE ARE 12 BOYS AND 9 GIRLS
Qualitative Observations/Data DATAT THAT CAN BE COLLECTED WITHOUT TOOLS BY USING 5 SENSES EX: TOUCH, SEE, SMELL, TASTE, HEAR
Repeated Trials ADDITIONAL TRIALS OR TEST OF THE SMAE EXPERIMENT EX: 2 + 2 = 4 CHECK ON A CALCULATOR
How to write a hypothesis AN "IF….THEN" STATEMENT EX: IF WE GO WHILE IT'S RAINING THEN WE WILL GET WET
How to write a title THE EFFECT OF IV ON DV
Y axis: Which variable goes on it and what direction is it? THE DEPENDENT VARIABLE VERTICALLY
X axis: Which variable goes on it and what direction is it? THE INDEPENDENT VARIABLE HORIZONTALLY
Permeable MATERIAL THAT LIQUIDS CAN FLOW THROUGH EX: SPONGE
Impermeable MATERIALS THROUGH WHICH LIUIDS CANNOT SOAK/FLOW EX: CONCRETE, CEMENT/PUDDLE
Which material (clay, sand, or gravel) will hold the most water? GRAVEL
Accumulation THE PROCESS OF WATER GATHERING IN A RESERVOIR
Transpiration WATER VAPOR GIVEN OFF BY PLANTS AND ANIMALS
Which reservoir in the water cycle contains the most water? CONDENSATION
Condensation THE CHANGE FROM GAS TO LIQUID EX: WHEN STEAM TURNS INTO RAIN/DEW
What are you seeing when the mirror fogs up after you breathe on it? EVAPORATION
Percolation THE MOVEMENT OF WATER THROUGH EARTHS MATERIALS EX: GRAVEL/SOIL/CLAY
Aquifer PERMEABLE EARTH MATERIALS THAT COLLECT WATER EX: THE DICKSON RIVER
Aquitard IMPERMEABLE EARTH MATERIALS EX: CLAY: NOTHING CAN GET THROUGH IT
Pesticides CHEMICALS TO KILL INSECTS EX: INSECTICIDES, FUNGICIDES, HERBICIDES
Point-source pollution SINGLE, INDENTIFIABLE SOURCE OF AIR, WATER, THEMAL, NOISE OR LIGHT POLLUTION EX: AIR OR CERTAIN COMPANY MAKING CHEMICALS
Non-point source pollution BOTH WATER AND AIR POLLUTION FROM DIFFUSE SOURCES EX: AIR: PEOPLE THAT DRIVE CARS
Ecosystem SPECIES COMING TOGETHER WITH IT'S ENVIRONMENT, LIVING AND NON-LIVING EX: DESERT: ALL ORGANISMS DESIGNED TO SURVIVE WITH LITTLE WATER
Biotic Factor LIVING THINGS IN AN ECOSYSTEM EX: BIRDS/ HUMANS/ ANIMALS
Abiotic Factor NON-LIVING PARTS OF ECOSYSTEM EX: TABLE CHAIR PAPER
Niche IT PROVIDES MANY DIFFERENT NICHES FOR ORGANISMS THAT LIVE UNDER / ON THE CORALS
Population ALL OF THE INDIVIDUAL OF ONE SPECIES IN A SPECIFIED AREA A TONE TIME EX: BEEHIVE
Community ALL THE INTERACTING POPULATIONS AND/OR INDIVIDUALS IN THE SPECIES AREA, MORE THAN ONE SPECIES EX: OWL AND BIRDS
In which biome would it be an advantage to have white fur? TUNDRA
Tundra ICY, COLD CLIMATE, FREEZING (LITTLE SNOW)
Taiga/Boreal Forest COOL 40-1100 CM RAINFALL ALL YEAR
Temperate Deciduous Forest LOTS OF TREES HOT /DRY
Grasslands VERY HOT IN SUMMER DRY AND VERY COLD IN WINTER
Tropical Rainforest HOT, MOIST 100 CM RAIN PER YEAR
Direct Observation A METHOD OF COLLECTION DATA THAT INVOLVES FIRST HAND VISUAL INSPECTION OF THE PARAMETERS UNDERSTUDY EX: YOU SEE 5 APPLES, YOU COUNT 5 APPLES, THERE ARE 5 APPLES
Indirect Observation THE RESEARCHER MUST RELY ON REPORTED OBSERVATIONS THAT INCLUDE DIRECT OBSERVATIONS OF OTHERS EXL ASKING SURVEYS
Sampling COUNTING THE NUMBER OF ORGANISMS EX: A CORAL REEF HAS MANY ORGANISMS
How populations increase WHEN THE BIRTHRATE EXCEEDS DEATHRATE EX: WHEN A MOUSE RATE GOES DOWN AN OWLS RATE GOES DOWN AS WELL
How populations decrease WHEN DEATH RATE EXCEEDS BIRTHRATE EX: WHEN A MOUSE RATE GOES UP AND OWLS GOES UP THE MOUSE GOES DOWN
Limiting Factor THE GROWTH OF AN ORGANISM POPULATION EX: SPACE - THE POPULATIONCAN ONLY GROW WITHIN ITS ROOM
Jet Stream A NARROW, VARIABLE OF VERY STRONG AIR CURRENTS CIRCLING THE GLOBE 5-9 KILOMETERS
Density THE DEGREE OF COMPACTNESS OF A SUBSTANCE EX: IF OIL GOES INTO THE OCEAN IT RISES BECAUSE OF IT'S LESS DENSE THAN WATER
What causes warm air to rise? TEMPERATURE, WIND, AND DENSITY EX: WHEN MOLECULES ARE HEATED THEY COME TOGETHER AND RISE
Gulf Stream A WARM OCEAN CURRENT THAT FLOWS FROM THE FULF OF MEXICO THROUGH THE ATLANTIC OCEAN
Habitat Destruction/Loss WHEN A NATURAL HABITAT IS RENDERED FUNCTIONALLY UNABLE TO SUPPORT THE SPECIES PRESENT EX: WHENA FOREST FIRE HAPPENS THEN A TREE FALLS A SQUIRREL LOOSES IT'S HOME
Habitat Fragmentation DESCRIBES EMERGENCE OR DISCONTINUES IN AN ORGANISM PREFERRED ENVIRONMENT EX: WHEN ANIMALS ATTACK EACH OTHER
Extinction THE STATE/PROCESS OF A SPECIES FAMILY OR LARGER GROUP BEING OR BECOMING EXTINCT. EX: DINOSAURS WENT THROUGH AN EXPLOSION AND GOT KILLED
Keystone Species OTHER SPECIES IN AN ECOSYSTEM LARGELY DEPEND SUCH THAT IF IT WERE REMOVED THE ECOSYSTEM WOULD CHANGE EX: IF YOU TOOK A BIRD OUT OF A WHOLE SPECIES THEN IT WOULD ALL CHANGE
3 Factors that Affect Biodiversity 1 HABITAT DESTRUCTION 2 CLIMATE CHANGE 3 POACHING EX: 1 LOOSING HOMES 2 PLANTS IN COLD EATHER WON'T GROW 3 ELEPHANTS AND TUSKS
Captive Breeding BREEDING ANIMALS IN HUMAN CONTROLLED ENVIRONMENTS WITH RESTRICTED SETTINGS EX: MAKING A BIGGER POPULATION
Biodiversity THE NUMBER OF A DIFFERENT SPECIES IN AN AREA EX: POPULATION/ECOSYSTEM
What is the MAIN cause of species extinction? (Be specific!) POACHING/ILLECAL HUNTING EX: ELEPHANTS FOR TUSKS AND ALLIGATORS FOR SKING
What type happens after a forest fire? BURNS LOW-LYING VEGETATION
Pros and Cons of forest fires 1 RECYCLES NUTRIENTS INTO SOIL 2 HELPS CONTROL DISEASES IN SOIL/PLANTS 3 OPENS FOREST FOR SUNLIGHT EX: 1 ANIMAL HABITATS = RUINED 2 DAMAGE TO HOUSE.PROPERTY
Controlled burn A TECHNIQUE USED IN FOREST MANAGEMENT AND FARMING
5 DON'TS FOR WORKING IN A SCIENCE LAB 1 NO HORSE PLAY 2 HAIR DOWN 3 NO EATING OR DRINKING 4 DON'T DRINK CHEMICALS 5 NO OPEN TOED SHOES
DESERT HOT AND DRY BIOME EMPTY
Created by: aphidkiller