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Exam date ___________________ Science Grade 7 Final Exam Review 2011-2012 METRIC SYSTEM (units) measured in Length and distance (how long or far something is) ____________________ Weight or mass (how heavy something is) ____________________ Liquid or volume ____________________ When converting cm to mm move the decimal point one place to the right. K H D BASE D C M ______________________________________ __________cm ______________mm _________________ __________cm ______________mm ___________________________ __________cm ______________mm Give an example of: An object that would have a mass close to 1 gram = ________________________ An object that would be similar in volume to 1 liter = ________________________ A length that is closest to 1 meter = ______________________________________ CHARACTERISTICS OF LIVING THIGS Stimulus - _______________________________________________________________ Response - _______________________________________________________________ Reproduction – when living things produce offspring 1 Sexual - ________________________________________________ Asexual - _______________________________________________ Characteristics of ALL LIVING things 1. ___________________________ 2. ___________________________ 3. ___________________________ 4. ___________________________ 5. ___________________________ 6. ___________________________ GENETICS - The passing on of characteristics from one organism to another Gregor Mendel - ____________________________ Basic unit if heredity - ________________________ # of chromosomes __________________- (23 pairs) Male and female sex cells have _________________ chromosomes Gene- __________________________________________ Dominant - _____________________________________ Complete the Punnet Square of a purebred tall and purebred short Recessive - ______________________________________ Purebred - ______________________________________ Hybrid - ________________________________________ Genotype - ______________________________________ Phenotype - _____________________________________ XX - ___________ XY - __________________ 2 CELLS nucleus DNA cytoplasm lysosome mitochondria vacuole mitosis cell membrane chloroplasts cell wall diffusion endoplasmic reticulum osmosis _________________________ control center of a cell that contains the DNA _________________________ genetic material / code in the nucleus _________________________ stores energy _________________________ digests _________________________ controls which substances enter or leave the cell _________________________ passageway throughout cell _________________________ stores water and waste _________________________ process by which water enters or leaves the cell _________________________ where photosynthesis takes place _________________________ jelly-like material inside the cell _________________________ outermost lining of a cell _________________________ how a cell reproduces _________________________ process by which materials enter and leave the cell Define: Multicellular - _______________________________________ Unicellular - ________________________________________ 3 BACTERIA BACTERIA - living or nonliving (circle one) - feed on living things called ______________________ - most are not harmful - ancient bacteria is called _________________________________ CLASSIFICATION OF LIVING THINGS _______________________________________ - the system of naming organisms developed by Carolus Linnaeus Most scientific names are written in ___________________ Genus species (Genus is capital letter, species is not) Felis leo = lion Felis Leo and Felis tigris are closely related because same genus PROTOZOANS o Unicellular ________________________________________ o Multicellular _______________________________________ o Autotroph _________________________________________ o Heterotroph ________________________________________ Examples: amoeba, paramecium, euglena, sporozaon 4 KINGDOMS D K P C O F G S domain kingdom phylum class order family genus species Largest Smallest D K P C O F G S dear king Philip came over for good soup PROTISTS & FUNGI 6 kingdoms 1. _________________________________ ancient bacteria 2. _________________________________ helpful bacteria for you 3. _________________________________ trees, flowers, plants, grass 4. _________________________________ all kinds of animals 5. _________________________________ 1 celled organisms (amoebas, paramecium) 6. _________________________________ mushrooms, mold, mildew Fungi _____________________________ Reproduce by __________________________________________________ Are found in ___________________________________________________ 5 PLANTS Roots __________________________ __________________________ Leaves _________________________ _________________________ Cuticle __________________________________________ Stems Xylem - ___________________________ Phloem - _____________________ Green plants use _________________________________ during photosynthesis Carbon dioxide enters the leaf through the _________________________ What does this equation represent _______________________________________ H2O + CO2 C6H12O6 + O2 _________ + _______________ __________________ + _________________ What does C6H12O6 stand for? __________________________________ This is made during photosynthesis and broken down during respiration Chlorophyll is needed for ____________________________ What does this equation represent ________________________________________ C6H12O6 H2O + CO2 ______________________ _____________________ + ___________________ ECOSYSTEM Define: Biotic - _________________________________________________________ Abiotic - ________________________________________________________ 6 Mutualism – relationship between 2 species in which both species ______________ Parasitism - relationship in which 1 organism ___________ on or in side another and ______________ it. Commensalism – relationship in which 1 species ___________________ and the other is neither __________________ nor ___________________ Ecosystem - __________________________________________________________ Community - _________________________________________________________ Limiting factors of population: _____________________ _____________________ _______________________ Carnivore - _____________________________________ Herbivore - _____________________________________ Omnivore -______________________________________ The way food and energy are linked between plants and animals is called a ____________________________________ In a food chain the : Producer _____________________________________________________ Consumer ____________________________________________________ Decomposer ___________________________________________________ 7 HUMAN BODY Match the organ system to the organ. Write the letter of the system in the space provided next to each body part. D = digestive R = respiratory M = muscular S = skeletal N = nervous C = circulatory _____ stomach _____ heart ______ vein _____ trachea ____ esophagus _____ brain _____ nose _____ small intestine _____ vertebrae _____ lung _____ large intestine _____ artery Circulatory system Nervous system Respiratory system Skeletal system Digestive system _____________________________receive the information about what is happening inside / outside your body _____________________________ provide shape, support, enable you to move, protects organs and produces blood cells _____________________________ breaks down food so the body can use it _____________________________ moves oxygen from the outside environment into the body ____________________________ carries substances through the body to the cells and wastes away from the cells 8 FOOD CHAIN Read the following story and use the information from the story to answer the following questions. A student observes the following while on her camping trip in the forest: There are oak and maple trees and patches of grass and moss. She notices that there are rabbits and deer feeding on the grass and moss, and various insects are feeding on the leaves of the trees. Birds start eating the insects, and she sees a hawk swoop down and eat a rabbit and some birds. The bears in the forest often hunt for the deer and rabbits. 9 Fill in each of the organisms in a food web. Create an Energy Pyramid 10 Label the microscope. 11 Graphs, Tables, & Charts: The table below shows the population of geese, turtles, and raccoons living in and around a pond. Snapping turtles prey on goslings. Raccoons prey on goose eggs and turtle eggs. Geese Raccoons Turtles 1989 52 20 5 1991 48 26 8 1993 70 4 26 1995 53 9 10 1.) Create a line graph, plot the total population of geese, turtles, and raccoons for each year. Use a different color to represent each population. Provide a key and be careful with your numbering (intervals). # of A N I M A L S YEAR 2.) In what year did a sudden change occur in the sizes of all 3 populations? ___________________________________________________ 3.) What happened to the size of each population? __________________________________________________________________________ __________________________________________________________________________ 12