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Tides can be either ___ or ___
High or low
What is a shadow?
An area without light
What causes our seasons?
The Earth spins on its axis while it travels around the sun
The moon travels around the...
Earth
Tides are caused by...
Gravity
A shadow moves during the day because of...
the rotation of the Earth
What is the Earth's path around the sun called?
Orbit
How long does it take for the moon to go through all of its phases?
about a month (28 days)
What are tides?
Short term periodic rise and fall of the ocean
What time of the day will a shadow be the shortest?
12:00 pm (noon)
What causes day and night?
The Earth's rotation on its axis
The moon is appearing to get larger
Waxing
Does the sun or moon have a greater influence on the tides on Earth?
The moon
Can shadows be created without light?
No, they need a light source and an object
What does it take the Earth one year to complete?
A revolution around the sun
The moon is appearing to get smaller
Waning
Do tides occur daily?
two high and two low tides occur every 24 hours and 50 minutes
What is the color of a shadow?
Black since it blocks the light
Which hemisphere is the United States in?
Northern Hemisphere