Comets
What is a tail?
Trails of gas and dust that the comet leaves behind as it travels through the solar system.
Which of following does not make up an asteroid?
Carbon, rocks, metals and dust.
______ is the sixth planet away from the sun and the largest planet.
Saturn
How many phases does the moon experience?
Eight
True or False? Meteors are momentary streaks of light that can be seen flashing across the sky.
True
Although comets may look bright in our skies as their comas and tails reflect sunlight, the nucleus is actually what color?
Black as charcoal
True or False. Asteroids are field of dust that orbit around the sun that are large enough to be planets.
False.
Which planets have the least amount of gravity?
Jupiter and Neptune
How long does it take for the moon to orbit the Earth?
27.3 days
Meteors are often called what?
Shooting stars
What natural resource did comets deliver to Earth?
Water
What do asteroids orbit around?
The Sun
What planet is closest to the sun?
Mercury
What happens when the moon, sun and Earth all line up at the same time?
An eclipse
When a meteor lands on earth it's as small as....
A pebble
What is a coma?
A thin fuzzy atmosphere that surrounds the center of the comet.
Most asteroids are found in the asteroid belt between what two planets?
Mars and Jupiter
Which planet is known as Earth's, "Sister Planet" because they are nearly the same size?
Venus
How long does it take for the moon to run through all of its phases?
29.5 days
What materials burn up when they come into the Earth's atomposhere?
Small pieces of rock and metal.
What is the diameter range for a comet?
6-25 miles
10 m to 10,000 m
Mercury and Venus
When the next new moon nears, the moon shrinks back to a crescent that's less than half full is called what?
Waning crescent