Science Periodical exam 4th quarter reviewer quiz

• Weather - is the state of the atmosphere at a given time and place.
• Air mass - is a very large body of air that has similar temperature and humidity throughout.
• Front - can be cold, warm, stationary.
• Cold front - is a mass of cold air.
• Warm front - mass of warm air.
• Stationary front - neither a warm air mass nor a cold air mass moves towards the other.
• Weather disturbance - describes a changes in atmosphere condition or weather pattern.
• Hurricanes, thunderstorm, cyclones, and tornadoes - are different types of weather disturbances.
• Wind, temperature, air pressure, and humidity are factors of weather
• Thunderstorm - is a small, intense storm which produces strong winds , heavy rain, lightning, and thunder.
• Hurricane - is a tropical cyclone that forms over the Atlantic Ocean east of the Caribbean Sea.
• Typhoon - Mature tropical cyclone which develops in the western part ofof northern Philippine sea.
• PAR - PHILIPPINE AREA OF RESPONSIBILITY.
• Tropical depression - less than 63 kph
• Storm - 63 to 118 kph
• Typhoon - more than 118 kph
• Tornado - this weather disturbances is violent, spinning column of air that is in contact with the ground
• A tornado is called waterspout when it occurs over a body of water
• Give 5 name of typhoon

  1. Helen
  2. Domeng
  3. Odette
  4. Zigzag
  5. Henry
• PSWS - Philippine public storm warning signals.
• PSWS 1 - winds of 30 - 60 kph or intermittent rains is expected in at least 36 hours
• PSWS 2 - winds of 60-100 kph are expected for at least 24 hours
• PSWS 3 - winds of greater than 100 kph up to 185 kph are expected in at least 18 hours
• PSWS 5 - sustained winds of more than 220 kph are expected in at least 12 hours
• Phases of the moon - are different ways of the moon
• The moon orbits at earth at an average distance of 382,000 kilometers
• Moon changes every 29.5 days
• Each complete cycle of phases is called lunation
• Four terms of phases of the moon

  1. Crescent
  2. Waxing
  3. Waning
  4. Gibbous
• During new moon, the moon is not visible since it's entire dark sides faces the earth
• Waning crescent phase is observe before the first quarter
• A week after new moon, you only see half of the lighted sideside of the moon, this is the first quarter phase
• Before and after full moon, the waxing gibbous phase.
• If lit side getting smaller, it is called last quarter
• Supermoon - it is a full moon that happens when the moon is closest in its orbit to earth
• Zodiac signs - astrologers use 12 - 13 constellations to makemake astrological predictions
• Memorize 5 zodiac signs

  1. Taurus
  2. Virgo
  3. Cancer
  4. Leo
  5. Aries
• Star - isa a huge sphere of very hot, glowing gases
• Constellations - pattern of stars that forms an Imaginary outline as seen in the sky
• Asterism - group of stars which formsforms a pattern in the sky and smaller than constellations