Waves, Currents, Tides

What causes waves?

• ice and wind
• winds and currents
• currents and tides
• wind and tide changes

Tags

NGSS.MS-PS4-1

At low tide there is _____.

• less beach
• more water
• higher water
• more beach

How are waves, tides, and currents alike?

• Always moving, affect the shape of the shoreline
• Affect the shape of the shoreline & are caused by wind
• Affect the shape of the shoreline & are caused by tsunamis
• Always moving & affected by gravity

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS4-1

Surface currents...

• occur below the surface of the water.
• occur above the surface of the water.
• occur on the surface of the water.
• All of the above.

Tags

NGSS.MS-ESS2-6

What is the same about density currents and surface currents?

• circular flow
• caused by temperature
• generated by wind
• direction is altered by landforms in their path

Density currents are caused by...

• density differences caused by temperature & salinity. 
• changes in wind directions.
• prevailing winds.

Longshore currents flow...

• in a zig zag pattern.
• parallel to the shoreline.
• vertically to the shoreline.

____________are caused by the moon’s gravitational pull on the Earth.

• Tides

• Breaker

• Through

• Current

Tags

NGSS.MS-ESS1-1

Tides are the regular rise and fall of ocean water.

• True

• False

Tags

NGSS.MS-ESS2-4

Tides rise and fall about_________ a day.

• once

• monthly

• twice

Tags

NGSS.MS-ESS1-1