Practice OC.6a Vocabulary

Match the following.

• spring tide

• The time of greatest variation between high and low tides occurring when Earth, moon, and sun form a straight line.

• low tide

• The time at which the tide reaches its lowest level.

• tidal range

• The time of smallest variation between high and low tides, occurring when the Earth, moon, and sun align at right angles.

• high tide

• The time at which the tide reaches its highest level.

• neap tide

• The difference in height between consecutive high and low tides.

Tags

NGSS.MS-ESS1-1

Match the following.

• mixed tide

• A “no-tide” point in the middle of a body of water from which tide crests rotate outward. Sometimes called a node.

• amphidromic point

• A tidal cycle of two high tides and two low tides each lunar day, with the high tides of nearly equal height.

• diurnal tide

• A complex tidal cycle, usually with two high tides and two low tides of unequal height per day.

• semidiurnal tide

• A tidal cycle of one high tide and one low tide per day.

Tags

NGSS.MS-ESS1-1

Match the following.

• tidal current

• a.k.a. slack tide; time of no tidal currents and happens at high and low tides, when the current changes direction.

• ebb current

• The rise of fall in sea level causes water to flow in and out of bays and harbors.

• flood current

• Water rushing out of an enclosed area as the tide is going out.

• slack water

• Water rushing into an enclosed area as the tide is coming in.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Match the following.

• tidal range

• 
• low tide

• 
• high tide

• 
• neap tide

• 
• spring tide

• 

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4

Match the following.

• mixed tide

• 
• diurnal tide

• 
• amphidromic point

• 
• semidiurnal tide

• 

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4

Match the following.

• flood current

• 
• tidal current

• 
• slack water

• 
• ebb current

• 

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4