SCIENCE 5 WEEK 1-8 QUARTER 4

• The breaking of rocks into fragments is called weathering.
• Weathering can be mechanical weathering and chemical weathering.
• Mechanical weathering is a physical weathering away of rocks without any change in their chemical nature.
• Chemical weathering is involves a change in the composition or rocks that allows them to break into pieces.
• Stalactite is an ice like structure hanging from a cavern ceiling.
• Stalagmite is an ice like structure built up a cavern floor.
• Weather is the condition of the atmosphere at a short period of time .
• LPA and HPA - these refers to the weight of air that is pressing down on Earth.
• Cyclone - the cool air flows to take the place of the rising warm air. As a result, the air current spin.
• Tropical cyclone - that occurs within the Philippine area responsibilities (PAR) develops in two areas. These areas are in the pacific ocean and west Philippines sea.
• Tropical disturbance - it is an isolated weather system with an apparent circulation.
• Tropical depression - it is a weak low pressure disturbance with a definite surface circulation. A tropical depression has a maximum wind speed of up to 61 kph
• Tropical storm - is a moderated tropical cyclone with maximum speed of 62-88 kph.
• Typhoon - is an intense weather disturbance have more or less a circular shape and with 500 kilometers in dm