SCIENCE HIGHSCHOOL ENTRANCE EXAM REVIEWER

• Cornea - the only part of the body without blood supply
• Leukocyte - cells play a role in body defense
• Heart - first organ develop in fetus
• Seven - how many true ribs present in the human body
• Hypoxia - the lack of oxygen in the tissue
• 206 - total of all the bones in the human body
• The law of energy conservation - states that cannot be created nor destroy but can be only transformed from one to another
• Radiation - the transfer of electromagnetic energy by waves
• Conduction - the transfer of heat energy by direct contact between particles
• Convection - the transfer of heat energy through the movement of fluids
• Mechanical energy

  • makes work easier and faster

  • it can generate electricity

  • it makes things move
• Chemical energy

  • used as fuel

  • it sustain life

  • used to generate electricity

  • it can produce sound and light
• Radiant energy

  • used for food

  • used for heating up earth

  • it gives light and color to the surrounding

  • used for heating and drying
• Inclined plane - is a simple machine that has a sloping surface
• Lever - is a device which has a fulcrum or a pivot point the effort and where force is applied
• Wedge - is a double inclined plane that is sharpened
• Screw - that is wrapped around a central
• Pulley - the groove prevent the rope from sliding
• Wheel and axle - has the same appearance as pulley but it has that is fixed to the axle