vocabulary
Name the 4 terrestrial planets
Mercury, Venus, Earth, Mars
What do we call it when the moon is "growing light" each night? This happens in the first half of the lunar cycle
Waxing
The branch of science that focuses on stars, planets, and other objects in space is called _______
When a planet spins on its axis one time, this is called a R________________
Rotation
Which planet is closest to the sun?
Mercury
All models have limitations. Which of these is a limitation for your solar system on a string model?
A. The order of the planets
B. The size of the planets
C. The names of the planets
B. The size of the planets was not accurate, so it was a limitation.
How long does each lunar phase last?
About 3 days
What galaxy do we live in?
Milky Way Galaxy
Do all planets have the same length rotations?
No (some planets have longer or shorter rotations than Earth)
Which planet is farthest from the sun?
Neptune
The unit of measurement equal to the distance between the Earth and the sun.
Astronomical Unit (AU)
How long does it take the moon to complete one lunar cycle?
about 29 days
What is the 3rd planet from the sun?
Earth
The seasons on Earth are caused by the ______ of Earth' s axis
Tilt
What happens to gravity as a planets size increases?
The gravity also increases. The bigger the planet, the more gravity.
A large system of dust, gas, stars, and other celestial bodies that has a particular shape.
Galaxy
What phase happens right after the full moon
Waning Gibbous
What does terrestrial planet mean?
These planets have a dirt/ solid surface
Each season lasts about __ months
3
Name the planets in order from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
How long does it take the Earth to rotate one time?
24 hours
What does the moon's relationship to tides?
The moon's gravity pulls on the Earth, causing the ocean to rise and fall.
Why are some planets called a gas giant? What does this mean?
These planets do not have a dirt/solid surface. They are made of gases.
The inner planets are separated from the outer planers by an _______________
Asteroid belt
1- our sun