Test your basic knowledge |

CSET Earth

Subjects : cset, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Around a new or full moon - when the sun - moon - and the earth form a line - the tidal forces due to the sun reinforce those of the moon - The tide's range is at a maximum and is called a spring tide (spring as in 'to jump/leap -' not the season)






2. The breakdown of rocks - soils and minerals through direct contact with atmospheric conditions such as heat - water - ice - and pressure






3. Large - dark clouds that indicate thunderstorms






4. Characterized by unusually warm ocean temperatures in the eastern equatorial Pacific - warm current of nutrient - poor tropical water - heated by its eastward passage in the Equatorial Current - replaces the cold - nutrient - rich surface water of th






5. Believed to originate at a much greater distance from the Sun - in a cloud (the Oort cloud) consisting of debris left over from the condensation of solar nebula - Comets are thrown from the outer planets or nearby stars - or as a result of collisions






6. Common: wind - clouds - rain - snow - fog - dust storms - Less common: natural disasters such as tornadoes - hurricanes - and ice storms






7. The center of the sun may have a temperature of millions of degrees; the visible surface - the ______ - is about 6000






8. Take up about 1/3 of the earth's land surface - many are formed by rain shadows - Usually have a large diurnal (day) and seasonal temperature range - with high daytime temperatures






9. Can thaw and melt - and the ensuing water flows overland as snowmelt






10. Form when magma or lava cools and solidifies - Depending on the rate of cooling - can contain visible crystals - while others can appear glassy






11. The degrees east or west of the prime meridian through Greenwich - England






12. Seasons are marked by changes in the amount of sunlight - which in turn often cause cycles of dormancy in plants and hibernation in animals - These effects vary with latitude and with proximity to bodies of water






13. Piled in waves and indicate rain or snow






14. Water returns to the land surface at __________ than where it entered - under the force of gravity or gravity - induced pressures






15. Characterized by similar temperatures and moisture levels






16. Can influence climate by sending tremendous volumes of dust - ash - and smoke into the atmosphere






17. At any given time - regardless of season - the Northern and Southern Hemispheres experience...






18. Some groundwater finds openings in the land surface and emerges as...






19. Solar Atmosphere is divided into the inner chromosphere with explosive prominences and the outer corona - a glowing halo visible only during a total eclipse - Constantly emitting particles as a...






20. Most sediments were deposited in beds that were originally horizontal - and any tilting is due to later earth movements






21. Rocks are placed into groups according to how they form...






22. Under solar conditions - gases are undergoing _____ to heavier elements with the increase of prodigious quantities of energy






23. Erosion in many places is increased by human land use - Poor land - use practices include deforestation - overgrazing - unmanaged construction activity - and road building






24. Improved land - use practices can limit erosion by using techniques such as...






25. The tendency of a moving object to stay in a straight line or a stationary object to remain in place - Without _______ - a planet would be pulled into the sun






26. The science of the atmosphere and weather






27. The strong temperature contrast between polar and tropical air gives rise to the ________






28. Some precipitation falls as ____ and can accumulate as ice caps and glaciers - which can store water for thousands of years






29. The movement (carrying away or displacement) of solids (sediment - soil - rock - and other particles) - usually by the agents of currents such as wind - water - or ice by downward or down - slope movement in response to gravity






30. A huge ball of incandescent gases - Its mass is more than 300000 times that of the earth - Principal constituents are the lightest elements - hydrogen and helium






31. The tidal force produced by the sun is ____ as large as that produced by the moon






32. Classified as warm - water or cold - water currents






33. Faulting and folding






34. Some water infiltrates deep into the ground and replenishes ________ - which store huge amounts of freshwater for long periods of time






35. Comprised of the crust and the rigid uppermost part of the mantle - broken up into tectonic plates (7 major and many minor) - ride on the asthenosphere






36. Volcanoes can be caused by '____________'; these so - called hotspots - as in Hawaii - can occur far from plate boundaries






37. The farther from the tropics you are positioned - the ________ the angle of the sun - This causes those locations to be cooler due to the indirect sunlight






38. Officially defined as sustained sea surface temperature anomalies of magnitude greater than 0.5






39. Occurs when the moon sets at sunset - Then the moon is between the earth and the sun - so we see only the dark half of the moon






40. The evaporation of these oceans is how we get most of our __________ - and their temperature determines our climate and wind patterns






41. Cause pressure differences - A hot surface heats the air above it and the air expands - lowering the air pressure and its density






42. Zero degrees latitude - generally has a tropical climate (warm and wet); at the extreme northern and southern latitudes (polar regions) - the climate is very cold and dry






43. Spiral - elliptical - and irregular form are speckled throughout the visible universe - Largest telescope has detected galaxies to its limit of several billion light - years






44. Large - scale movements of the earth's lithosphere - - The theory encompasses the older concepts of continental drift (first half of 20th century) and seafloor spreading (1960s)






45. Largest zone of the planet (68%); crystalline silicates - rich in magnesium - calcium - and iron; very hot and mainly solid - but local melting to magma is the source of volcanic eruptions






46. The result of the buildup of once - living things






47. Nearest galaxy - about 20 million light - years away






48. Gas giants Jupiter - Saturn - Uranus and Neptune have diameters far larger than Earth's and have far greater masses






49. Center: 3000

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50. 186000 miles/second