Earth's Cycles
(Earth-Sun-Moon System - ESS1-1)
(Earth-Sun-Moon System - ESS1-1)
Repeating patterns that are can help us predict future events and phenomena are called:
A. Crystals
B. Cycles
C. Craters
D. Comets
What are B. Cycles?
How many phases of the moon are there? What causes the phases of the moon?
What is...there are 8 phases of the moon. The phases of the moon are caused by the moon orbiting the Earth.
What is GRAVITY?
What is...
GRAVITY is a force that attracts two objects together.
A ______________ is a celestial body that orbits a star, is round due to gravity, and has cleared its orbit of debris.
What is a planet?
_______________is a natural or artificial object that orbits a planet due to gravity.
What is the cycle that causes day and night?
What is...
Earth’s rotation on its axis from West to East causes 50% of the Earth to get sunlight and 50% of Earth to get dark.
DAILY DOUBLE: You have just earned 200 points.
What is it that causes the moon to orbit Earth?
What is Earth's GRAVITATIONAL pull causes the moon to orbit Earth.
________________is the amount of mass in a given volume; affects a planet's structure, gravity, and ability to hold an atmosphere.
What is Density?
The distance light travels in 1 year (about 5.88 trillion miles); used to measure distances between stars and galaxies is known as: a _____________ ________.
What is a light year?
What is...Equinoxes?
What is Earth's orbit and why is it important?
What is...
Earth's orbit is the eliptical path that the Earth takes once every 365 1/4 days (or year) around the Sun.
What happens to cause a LUNAR ECLIPSE?
What is...
A LUNAR ECLIPSE occurs when the moon passes into the EARTH's shadow.
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As you go farther away from Earth the gravitational pull becomes..
A. Stronger
B. Weaker
C. Is not impacted
What is B. Weaker?
What does the Universe include?
What is space, time, galaxies, stars, planets, and other forms of matter and energy.
Also: Empty space, dust.
How far away is Earth from the Sun? What is this number used for?
What is...
The Earth is 93 million miles from the Sun. This number is used to measure distances in our solar system; also know as 1 Astronomical Unit or AU.
DAILY TRIPLE: 900 points!
Explain what causes the seasons.
What is...
Earth's seasons are a result of the tilt of the Earth's axis away or toward the sun as it moves on its orbital path around the Sun.
What happens to cause a SOLAR ECLIPSE?
What is...
A SOLAR ECLIPSE is caused by the Earth passing into the MOON's shadow.
What are two variables that impact GRAVITY? Explain how they impact Gravity.
What is...
The two variables that impact GRAVITY are the DISTANCE between the objects and the MASS of the objects. The closer the distance, the greater the gravitational force. The larger the mass of the object the greater the gravitational attraction.
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Our sun is one of_____ ___________stars in the Milky Way. It is the ONLY star in our solar system.
What is 100 Billion?
Every object attracts every other object with a force that depends on their mass and distance apart. This law is known as _______________________________________________________________________________________?
What is Newton's Law of Universal Gravitation?
When it is Winter in the Northern Hemisphere it is _______________in the Southern Hemisphere. This is because...
What is...When it is Winter in the Northern Hemisphere it is SUMMER in the Southern Hemisphere. This is because the Earth is tilted away from the Sun in the North and toward the Sun in the South.
Explain what causes the tides to rise and fall.
What is tides rise and fall due to the moon and sun's gravitational forces and the spinning of the earth. As the moon pulls on the earth, it creates bulges. The earth rotates through these bulges causing the ocean to rise and lower.
Imagine that the Moon and Sun are the same distance from Earth. Which one would Earth be gravitationally attracted to? Explain Why.
What is...If the Sun and Moon were the same distance from Earth, the Earth would be gravitationally attracted to the Sun, because it has more mass. Objects with more mass have more gravitational pull.
Why do planets orbit the Sun? Please explain using 2-3 sentences.
What is...
Planets orbit the Sun due to gravity. Gravity is the force that attracts objects to each other. The Sun has the most mass, so it has the most gravitational pull. Therefore the planets orbit the Sun.
According to your poster "Earth's Place in Space," Scientists say if you were in a jet traveling at the speed of light (300,000 km per second), how many years would it take to travel across the Milky Way Galaxy?
What is..
100,000 years!