Tides

The tidal bulge follows the movement of the _____.

• moon

• sun

• Earth

• ocean

Why does the moon's gravitational pull have more of effect on tides than the sun's gravitational pull?

• they are the same
• the moon is larger than the sun
• tides are not caused by the moon
• the moon is closer to the Earth than the sun

Tides are caused mainly by what?

• Moon’s gravitational pull
• Sun’s gravitational pull
• Earth’s gravitational pull

A ______________ tide occurs when the sun is at right angles to the line between Earth and the moon.

• high

• neap

• low

• spring

A___________ tide occurs when the sun, Earth, and the moon are in a straight line.

• spring

• high

• low

• neap

Wha type of tide would this arrangement of earth-moon-sun create?

• full moon tide

• new moon tide

• neap tide

• spring tide

What type of tides would this arrangement of earth-moon-sun create?

• neap tide

• spring tide

• new moon tide

• full moon tide

Neap tides happen during ___________ and _____________ moons.

• full / new

• 1st quarter / 3rd quarter

• waxing gibbous / waning gibbous

• waxing crescent / waning crescent

Which body has the greater effect on Earth's tides?

• Sun
• Saturn
• Moon 
• Venus

Tides are the cycle of rising and falling ocean water that repeats automatically every

• 24 hours
• 12.5 hours
• 25 hours
• 6.25 hours