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Name: _____________________________________ SNC1P/2L GRADE 9 AND 10 SCIENCE FINAL EXAM REVIEW Below are all of the topics that will be covered in the final exam. This booklet contains sample questions that may be on the final exam. If you can answer most of the questions in this review booklet without tears, foul language and threats of torture, you SHOULD be fine for this exam. If you can’t, you best be doing some studying…like soon. The written practical portion of your final exam is on MONDAY NOVEMBER 3, 2014. The written portion of your final exam is on WEDNESDAY NOVEMBER 5, 2014. CHEMISTRY: Matter 1. Pure substances and mixtures 2. Elements and compounds 3. Heterogeneous mixtures and homogeneous mixtures 4. Mechanical mixtures, suspensions and colloids 5. Atomic structure (protons, neutrons and electrons) 6. Atomic mass and atomic number 7. Periodic table and chemical families 8. Period and groups 9. Physical and chemical properties 10. Physical and chemical changes 11. Bohr-Rutherford diagrams 12. Writing chemical formula BIOLOGY: Ecology 1. Ecosystems (terrestrial and aquatic) 2. Abiotic and biotic factors 3. Producers, consumers and decomposers 4. Food chains, food webs and energy transfer 5. Photosynthesis and cellular respiration 6. Water, carbon and nitrogen cycles 7. Population and carrying capacity 8. Limiting factors (disease, predation, human activity, etc.) 9. Sustainability 10. Equilibrium in an ecosystem 11. Biodiversity 12. Factors that affect biodiversity (pollution, extinction, fragmentation, etc.) PHYSICS: Space 1. Universe and galaxies 2. Stars 3. The Sun 4. The Moon 5. Earth’s revolution and rotation 6. The seasons (summer and winter) 7. Solstice and equinox 8. Solar eclipse and lunar eclipse 9. The inner planets and the outer planets 10. Living and working in space 11. The Canadian contribution to space exploration Part A: Determine whether the following statements are true or false. (Knowledge/45) Question One The atomic number tells you the number of neutrons in an element. _____ Question Two Substances that are shiny, silvery metals found in the first column of the periodic table are called alkali metals. ______ Question Three A solid produced when two solutions are mixed together is called a precipitate. ______ Question Four The chemical symbol for sodium is S. ______ Question Five Melting point, density and hardness are all physical properties. ______ Question Six Compounds are pure substances that can be broken down into simpler substances. ______ Question Seven Magnesium is a transitional metal. ______ Question Eight The atomic mass is the number of neutrons plus the number of electrons. ______ Question Nine Chlorine belongs to the chalcogen chemical family. ______ Question Ten Helium is a noble gas. _____ Question Eleven Boiling an egg is an example of a chemical change. ______ Question Twelve Homogeneous solutions do not have uniform composition and properties throughout. ______ Question Thirteen The period is the part of the Periodic Table that indicates the total number of shells for an element. ______ Question Fourteen An atom with a net electric charge due to the loss or gain of one or more electrons is called an ion. ______ Question Fifteen Melting ice is an example of a physical change. ______ Question Sixteen An omnivore is a consumer that eats mostly plants. ______ Question Seventeen A group of animals of the same species living in the same area is called a population. _____ Question Eighteen The original source of energy for most ecosystems is the Sun. _____ Question Nineteen Organisms that break down dead animals and return nutrients to the ecosystem are called decomposers. _____ Question Twenty When the oxides of sulfur and nitrogen are combined with water and air, it forms acid precipitation. _____ Question Twenty One The burning of fossil fuels decreases the amount of carbon in an ecosystem. ______ Question Twenty Two Photosynthesis and cellular respiration are not complementary processes. _______ Question Twenty Three A species that no longer exists on Earth is called extinct. _______ Question Twenty Four Equilibrium is the variety of species in an ecosystem. ______ Question Twenty Five Competition occurs when two individuals compete for the same resources. ______ Question Twenty Six A limiting factor restricts the carrying capacity of a population. ______ Question Twenty Seven Acid precipitation, clear cutting and invasive species are all factors that can affect an ecosystem’s biodiversity. ______ Question Twenty Eight A consumer is an organism that makes its own food using the Sun’s energy. ______ Question Twenty Nine The non-living characteristics of an ecosystem are called abiotic. ______ Question Thirty Predation occurs when one individual feeds on another. ______ Question Thirty One The Earth is the centre of our solar system. ______ Question Thirty Two Galaxies can be spiral, elliptical or irregular in shape. ______ Question Thirty Three Massive balls of superheated gases that radiate heat and light are called stars. ______ Question Thirty Four Hot stars appear reddish and cool stars appear bluish. ______ Question Thirty Five The location of nuclear reactions that cause the release of energy from the Sun is at the corona. ______ Question Thirty Six It takes 24 days for the Moon to orbit the Earth, and 24 hours for the Moon to make one rotation. ______ Question Thirty Seven Comets are small objects made of rock and metal. ______ Question Thirty Eight It is summer time when the Northern hemisphere is tilted towards the Sun. ______ Question Thirty Nine In a solar eclipse, only the corona of the Sun is visible. ______ Question Forty The outer planets are the four planets of the solar system that are farthest from the Sun. ______ Question Forty One Mercury, Venus, Jupiter and Uranus are the four outer planets. ______ Question Forty Two A shuttle, the International Space Station, and a satellite are three examples of a spacecraft. ______ Question Forty Three Some of the hazards of working and living in space include radiation poisoning, puffy face and legs, and equipment failure. ______ Question Forty Four Canadarm2 and Dextre are two Canadian contributions to the International Space Station. ______ Question Forty Five Dr. Roberta Bondar is the first Canadian female astronaut sent into space. ______ Part B: Diagrams Question One (Communication/9) Draw a Bohr-Rutherford Diagram for each of the following elements: a. Sodium b. Nitrogen c. Argon Question Two (Communication3) Draw a food web using the following organisms: grasses, mice, snakes, hawks, rabbits, and wolves. Question Three (Application/4) Name two herbivores in this food web. Name two carnivores in this food web. Question Four (Communication/2) How would a decrease in mice population affect the rabbit population? Question Five (Communication/2) Would wolves and hawks compete for the same resources? Explain. Question Six (Communication/3) Uses diagrams to explain why it is winter in the Northern Hemisphere, when it is summer in the Southern Hemisphere. Part C: Short Answer Questions Question One (Application/3) Write the chemical formula and name for the compound formed by each of the following combination of elements: a. A compound that contains two atoms of potassium and one atom of oxygen b. A compound that contains one atom of carbon and four atoms of chlorine c. A compound the contains two atoms of aluminum and three atoms of sulfur Question Two (Communication/2) Describe how acid rain and/or invasive species can greatly decrease an ecosystem’s biodiversity. Question Three (Communication/2) Describe how competition and predation can affect a population’s carrying capacity. Question Four What are some of the benefits of sustaining an ecosystem? (Communication/3) Question Five Describe some of the limitations to space travel. (Communication/3) Question Six (Communication/2) In terms of space exploration, define the term “technology spinoff” and provide two examples of spinoffs that have affected your life.