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Science Final
Stack #80777
| Question | Answer |
|---|---|
| A ______ is where two air masses with different characteristics meet. | front |
| What type of pressure zone does cold air usually form? | high |
| What is the averaged over a long period of time to determine the climate of an area? | weather |
| What type of front do violent storms usually occur along? | cold |
| The interaction of air, water and ______ cause weather. | sun |
| What connects points o equal atmoshperic pressure? | isobars |
| A _____ ______ is a large body of air with specific characteristics. | air mass |
| What type of front occurs when a cold air mass slides under a warm air mass and forces it up? | cold |
| Warm air can hold ____ water. | more |
| The _____ _____ is the temperature at which air is saturated and condensation forms. | dew point |
| What is a major influence on climate? | land forms, large bodies of water, altitutude/latitude |
| What do you call a scientist that studies and forecasts the weather? | meteorologist |
| When the air temperature drops (decreases) the water vapor in the air will condense and become a ____. | liquid |
| Wind blows from areas of ______ pressure to areas of _____ pressure. | high to low |
| Large group of stars, gas and dust held together by gravity. | galaxy |
| Distance that light travels in one year. | light year |
| Instrument that breaks light into its spectrum of colors. | spectroscope |
| Earliest stage of a star's developement. | nebula |
| Amost of a star's light observed on Eather. | apparent magnitude |
| How does the sun produce energy? | nuclear fusion, hydrogen to helium |
| Main sequence stars make up about _____% of all stars. | 90 |
| The theory that states that the universe was formed by a big explosion that sent matter and energy expanding out into space. | Big Bang |
| What can the spectra of a star tell us? | Temperature, composition, if its traveling towars or away |
| Group the following from smallest to largest : solar system, universe, galaxy. | 1. solar system 2. galaxy 3. universe |
| Chemical reaction that absorbs energy. | endothermic |
| Chemical reaction that releases heat. | exothermic |
| Tells the number of atoms of each element. | subscript |
| Process that produces a chemical change. | chemical reaction |
| Matter cannot be created nor destroyed. | law of conservation of matter |
| A compound has atoms of ______ than one type. | more |
| Which of the following observations would indicate that a chemical change did NOT take place? 1. Something was burning. gas and bubbles were created, temperature change, or colors of substances mixed. | colors of substances mixed |
| Where do the bubbles from when you put an Alk-Seltzer tablet in water? | gas is formed, new substance is formed |
| What two elements are found in the compound CO2? | carbon & Oxygen |
| Which of the following would NOT speed up a chemical reaction. Making the reactant particles larger, increasing the concentration of a reactant, adding a catalyst, increasing the temperature. | making the reactant particles larger |
| The substances to the right of the arrow in a chemical formula. | products |
| According to the law of conservation of mass, how does the mass of the products compare to the mass of the reactants? | equal |
| Used the measure force. | newton (N) |
| A push or pull. | force |
| The distance traveled divided by the time needed to travel the distance. | speed |
| Speeding up, slowing down or changing direction. | accleration |
| an objects tendency to remain at rest or keep moving with a constant velocity. | intera |
| How does friction affect a rolling ball? | slows it down |
| If two balls of different masses are dropped from the same height which hits the ground with more force? The heaver or lighter ball? Why? | heavier because it has more mass |
| how does an unbalanced force effect an object? | causes it to acclerate |
| What causes an opened parachute to slow down the jumper? | air resistance |
| Sound waves travel faster through a :solid, liquid, or gas | solid |
| what of the following are electromagnetic waves: light, radio, x-ray, sound? | light. radio, x-ray |
| Alleles that are only shown when two of the same are present. | recessive |
| An organisms genetic makeup. | genotype |
| Visible traits of an organism. | phenotype |
| Organisms well adapted to their environment survive and produce at a great rate than other organisms do. | natural selection. |
| alleles that show their effect whenever they are present in the genotype. | dominant |
| which of the following is homozygous dominant? HH, Hh, hh | HH |
| Which of the following is heterozygous? HH Hh | Hh |
| Where are the instructions of the various hereditary traits of an organism located? | nucleus of cells (DNA) |
| A large population of houseflies was sprayed with a fast acting insecticide. How do you explain the appereance of increasing numbers of houseflies that are unaffected by the insecticide? | adapted & passed down genes |
| Give an example of an inherited trait. | hair color, eye color |
| What would happen to the population of rabbits with brown fur it the climate changed and there was and increase in snow in the winter? | more likely to become prey and not survive to reproduce |
| Mechanism that changes an internal condition in the body back to a normal state. | negative feedback |
| moves blood through the body. | circulatory system |
| tissues that work together. | organ |
| smallest functional unit of an organism. | cell |
| Maintaining a stable internal environment. | Homeostasis |
| Which two systems work to rid the body of carbon dioxide? Digestive, Circulatory, or respritory | Circulatory & respritory |
| Which two systems work to break down food and transport it to cells? digestive, circulatory, or respiratory | digestive & circulatory |
| What type of effect does paving land have on stream discharge? | increases it |
| Substances that contaminate the environment. | polluntants |
| How can a person in a industrialized nation help protect the environment? | use less energy |
| Piling up leaves and grss so they can be allowed to gradually decompse. | composting |
| What makes up 40% of the mass of trash? | paper |
| The careful use of resources to reduce damage to the environment. | conservation |
| What is trapped in the atmosphere when forests are cut down and therefore are fewer plants to photosynthesize? | carbon dioxide |
| What is one of the main causes of air pollution? | cars |
| A combinationof smoke and fog is? | smog |
| what is responsible for 60% of the smog in the US? | cars |
| When emissions from coal-burning power plants is combined with sulfur acid, ____ _____ is created. | acid rain |
| What is used to measure the strength of an acid? | pH scale |
| What do factories use to help control air pollution? | scrubbers |
| Which of the following are water pollutants? Bacteria, oil and gasoline, or runoff from mines | oil and gasoline & runoff from mines |
| How do farms polluter water? | use of fertilizers/insecticides |
| How do organisms in a predatory relationship interacter with eachother? Both feed on producers, both help each other, or one kills and consumes the other. | one kills and consumes the other |
| How do producers get their energy? | sun-photosynthesis |
| A minnow eats algae, what type of organism is the minnow? Producer, consumer, or decomposer | consumer |
| Bats eat mosquitoes and other insects. If the population of bats increases how will this effect the insect population? | cause it to decrease |
Created by:
MaddieMo
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