Oceans Trivia

Question 1-Round 1 What was Thor Heyerdahl trying to prove when he set sailed from Peru to Polynesia? What was Thor Heyerdahl trying to prove when he set sailed from Peru to Polynesia?

Question 1-Round 1 It would have been possible for people from ancient Peru to sail across the ocean using ocean currents. It would have been possible for people from ancient Peru to sail across the ocean using ocean currents.

Question 2- Round 1 How much water does the Gulf Stream transport? How much water does the Gulf Stream transport?

Answer 2- Round 1 It transports about 25 times more water than all the rivers in the world. It transports about 25 times more water than all the rivers in the world.

Question 3- Round 1 Which direction do global winds blow across the equator? Which direction do global winds blow across the equator?

Answer 3- Round 1 From East to West From East to West

Question 4- Round 1 How can a warm-water current affect the climate of a coastal region? How can a warm-water current affect the climate of a coastal region? Name a major warm-water current. Name a major warm-water current.

Answer 4- Round 1 They create unusually warm climates for that latitude. They create unusually warm climates for that latitude. Ex: Gulf Stream (heats up Scilly Isles) Ex: Gulf Stream (heats up Scilly Isles)

Question 5-Round 1 Which of the following waves has the fastest wave speed? Which of the following waves has the fastest wave speed? Wave 1: wavelength 30 m, wave period 15 s Wave 2: wavelength 50 m, wave period 10 s

Answer 5- Round 1 Wave 2: Wave 2: 5 m/s 5 m/s Wave speed = wavelength (m) / wave period (s) Wave speed = wavelength (m) / wave period (s)

Question 1- Round 2 Define wave height Define wave height

Answer 1- Round 2 The vertical distance of a wave between it’s trough and it’s crest The vertical distance of a wave between it’s trough and it’s crest

Question 2-Round 2 Deep currents are _______ and ________ than surface currents. Deep currents are _______ and ________ than surface currents.

Answer 2- Round 2 Colder and Denser Colder and Denser

Question 3- Round 2 Which surface current is deflected by the east side of South America? Which surface current is deflected by the east side of South America?

Answer 3- Round 2 Brazil Current Brazil Current

Question 4- Round 2 What is one way to demonstrate the Coriolis effect? What is one way to demonstrate the Coriolis effect?

Answer 4- Round 2 Trying to roll a ball straight across a turning merry-go-round Trying to roll a ball straight across a turning merry-go-round

Question 5- Round 2 What causes water from deep currents to rise to the surface and replace warm currents? What causes water from deep currents to rise to the surface and replace warm currents?

Answer 5- Round 2 The flow of warm currents from the equator to the poles The flow of warm currents from the equator to the poles

Question1- Round 3 How are surface and deep currents different? How are surface and deep currents different?

Answer 1- Round 3 Surface Currents – form by wind, move from east to west at the equator and west to east at the poles, can be warm or cool, controlled by: global winds, Coriolis effect, and continental deflection Surface Currents – form by wind, move from east to west at the equator and west to east at the poles, can be warm or cool, controlled by: global winds, Coriolis effect, and continental deflection Deep Currents – aka density currents, not controlled by wind, affected by temperature and salinity, formed by decreasing temperature, increasing salinity through freezing, and increasing salinity through evaporation Deep Currents – aka density currents, not controlled by wind, affected by temperature and salinity, formed by decreasing temperature, increasing salinity through freezing, and increasing salinity through evaporation

Question 2- Round 3 What are some negative effects of El Niño? What are some negative effects of El Niño?

Answer 2- Round 3 Rain, flash floods, and mudslides occur in places where there is usually little rain, while usually wet areas suffer droughts Rain, flash floods, and mudslides occur in places where there is usually little rain, while usually wet areas suffer droughts

Question 3- Round 3 Why do scientists study El Niño? Why do scientists study El Niño?

Answer 3- Round 3 It affects so many organisms and land It affects so many organisms and land

Question 4- Round 3 What is the difference between the trough and the crest of a wave? What is the difference between the trough and the crest of a wave?

Answer 4- Round 3 Crest: highest point of a wave Crest: highest point of a wave Trough: lowest point of a wave Trough: lowest point of a wave

Question 5- Round 3 What direction does an undertow flow? What direction does an undertow flow?

Answer 5- Round 3 Opposite direction of the wave Opposite direction of the wave