Science Vocab

• Water table

  The level of water underground
• Zone of saturation

  The layer of rock or soil that absorbs water underground
• Spring tides

  • Occur when the earth, moon, and sun are in alignment
  • The combined gravitational force of the sun and the moon cause a large tidal range
• Neap tides

  • Occur when the sun and moon are at 90 degrees to each other
• Fluid


  Any substance that flows
• Viscosity

  A measure of a fluid's resistance to flow
• Density

  The relationship between a fluid's mass and its volume
• Buoyancy

  The ability or tendency to float in water or other fluids
• Force

  A push or a pull
• Mechanical advantage

  Increase in power
• Work

  The transfer of energy through motion measured in units of "Joules" (J)
• Cell

  The smallest unit of life
• Multicellular


  Cells that are specialized and organized and are more than one cell
• Unicellular


  Cells such as bacteria and is also only one cell
• Selectively permeable

  Some substances are able to pass through the membrane, while other substances are not able to pass through