Tides and currents

What causes tides on earth

• The Earth's rotation

• The moon’s gravity

• The sun’s heat

• The earths atmosphere

Which current is found along the east coast in North America?

• Gulfs stream

• Antarctic circumpolar current

• Peru current

• Equatorial current

What is the term for the highest point of tides?

• Ebb tide

• Neap tide

• Spring tide

• High waters

When do high tides occur?

• During a Full moon

• During a new moon

• Every 6 hrs

• Twice a day

Which of the following is true about tidal currents?

• They are only influenced by the moons position relative to Earth.

• They occur because of the horizontal movement of water in response to changing tides.