Grade 9 Applied Science Review PDF

Grade 9 Applied Science Review Name: _______________________________ 1. List some of the pieces of equipment used in Science this semester. What does each piece of equipment look like and what is the function? 2. Describe what each of the 8 WHMIS symbols looks like. What is the hazard for each sy...

Grade 9 Applied Science Review Name: _______________________________ 1. List some of the pieces of equipment used in Science this semester. What does each piece of equipment look like and what is the function? 2. Describe what each of the 8 WHMIS symbols looks like. What is the hazard for each symbol? 3. a) What is the definition of an independent variable? b) What is the definition of a dependent variable? c) What are controlled variables? 4. A student conducts an experiment to determine which model of paper plane travels the farthest. For this experiment, what variable would each of the following represent? Distance: _______________________________ Wind speed: ___________________________ Material made from: _______________________ Mass of plane: _________________________ Model of plane: ___________________________ How it is thrown: ________________________ 5. Match the following properties to the most appropriate description. clarity colour state viscosity ductility malleability form luster hardness a) can be pulled into a wire _____________________ b) shiny or dull _____________________ c) red, blue, green _____________________ d) aluminum foil pulled into sheets _____________________ e) very thick and slow to pour _____________________ f) solid, liquid or gas _____________________ g) powder or chunk _____________________ h) transparent, translucent or opaque _____________________ i) test it by scratching _____________________ 6. a) What are the properties of the piece of chalk used in class? b) What are the properties of table syrup? 7. What is the difference between qualitative and quantitative properties? 8. Summarize how to determine the density of a solid and a liquid in the lab. 9. a) A piece of metal has a volume of 36.7 mL and a mass of 290 g. Use GUESS to calculate the density. b) A piece of aluminum with a density of 2.7 g/cm3 has a mass of 56.3 g. Use GUESS to calculate the volume. 10. State whether the following are examples of chemical or physical changes and include a brief explanation. a) _________________________________________ salt dissolves in water b) _________________________________________ when steel rusts it turns orange c) _________________________________________ smashing chalk d) _________________________________________ 2 liquids mix and form a solid e) _________________________________________ heat and light are produced during a fire f) _________________________________________ water evaporates 11. Match the following terms. metal non-metal alkali metal alkaline earth metal halogen noble gas family period a) ____________________ found in far right family; unreactive; full outer shell b) ____________________ second family from left; 2 electrons in outer shell; solid, grey c) ____________________ solid, shiny, silver, opaque, conducts heat and electricity; left side d) ____________________ second family from right; 7 electrons in outer shell, poisonous e) ____________________ different rows f) ____________________ properties vary; non-conductors; right side g) ____________________ columns of elements with similar properties h) ____________________ first on left; shiny, silver, soft, solids; very reactive; 1 electron in outer shell 12. How were we able to use experimentation to compare the reactivity of elements in different families and periods on the periodic table. 13. Use the Periodic table to draw a fully labelled Bohr diagram of: a) carbon b) sodium 14. Use the words turbine, stator and rotor to describe how power is generated. 15. State what type of generation each of the following applies to. a) ________________________ disrupts fish migration b) ________________________ releases the most carbon dioxide c) ________________________ uses heat from the ground to warm water in pipes d) ________________________ is considered carbon neutral because plants absorb carbon dioxide e) ________________________ mining coal harms ecosystems f) ________________________ transport of oil could result in spills g) ________________________ does not produce any greenhouse gases h) ________________________ production of solar panels produces material waste i) ________________________ construction of hydroelectric dam is expensive j) ________________________ waste is radioactive k) ________________________ produces gases that produce acid rain l) ________________________ produces noise 16. If a light bulb needs 180 kW of energy to produce 60 kW of light, what is its efficiency? Show all of your work. 17. A stove has a power rating of 1200 W. If it is used 0.75 h each day and the rate is $0.123 per hour, how much does it cost to run it each month? Show all of your work. 18. What are some ways that energy and money can be saved? Brainstorm at least 6. 19. Draw a diagram and include an explanation for how fur and ebonite become charged when they are rubbed together. 20. Draw a diagram and include an explanation to describe what occurs when a neutral pith ball is touched with a positive rod. 21. Draw a diagram and include an explanation to describe what occurs when a neutral pith ball is touched with a negative rod. 22. Draw a diagram and include an explanation to describe what occurs when a neutral mass is charged by induction using a negative rod. 23. a) What are the different parts in a circuit. (at least 4). Draw how each would appear in a schematic diagram. b) Draw a schematic diagram showing 2 bulbs connected in parallel with a switch that controls both of them. c) Draw a schematic diagram with 3 bulbs connected in series. d) List all of the ways a circuit can be opened. 24. a) If a power source gives off 12 V and there are 4 bulbs in parallel, what voltage would each bulb receive? b) If a power source gives off 18 V and there are 3 bulbs in series, what voltage would each bulb receive? 25. Match the following words to the most appropriate description. Hydrosphere place where organisms are living Atmosphere solid surface Lithosphere all of the water on the planet Biosphere layer of gases around the planet 26. Describe how the terms ecosystem, biotic and abiotic are all interconnected. 27. Examine the food web below. a) Which organisms are herbivores? b) What is the prey of a hawk? c) Which organism is in the first tropic level? d) Which organism is a second consumer? e) Are there any herbivores in the food web? Explain. f) How would a decomposer be added to the food web? g) What would happen to the food web if hawks were no longer present? Explain. h) Write out a 3 organism and a 4 organism food chain. 28. Draw and explain what is occurring in the water cycle. 29. Draw and explain what is occurring in the carbon cycle. 30. Match the following words to the most appropriate description. Nitrogen fixation break down dead organisms and add nitrates to soil Denitrification industrial process in which fertilizer if produced Decomposition process in which oxygen and nitrogen react to form nitrates Haber process nitrates in soil turned back into nitrogen gas 31. Describe in point form all of the ways humans have produced pollution that has impacted ecosystems.