Answer:
A - Asteroids are massive.
S - stands for siliceous
T -
E -
R -
O -
I -
D -
1. What makes up a comet?
Answer: Comets are frozen leftovers from the formation of the solar system composed of dust, rock and ices. They range from a few miles to tens of miles wide, but as they orbit closer to the sun, they heat up and spew gases and dust into a glowing head that can be larger than a planet.
2. Where do comets originate?
Abswer: Oort Cloud Comets are believed to have two sources. Long-period comets (those which take more than 200 years to complete an orbit around the Sun) originate from the Oort Cloud. Short-period comets (those which take less than 200 years to complete an orbit around the Sun) originate from the Kuiper Belt.
3. Why does the tail of a comet seem to grow longer as the comet travels closer to the Sun?
Answer: Comet tails get longer and more impressive as the comet gets closer to our Sun. As the comet approaches our Sun, it gets hotter and material is released more rapidly, producing a larger tail. Scientists estimate that a comet loses between 0.1 and 1 percent of its mass each time it orbits our Sun
Explanation:
A - Asteroids are massive.
S - Shapes of asteroids are determined primarily by monitoring their changing brightness on timescales of minutes to days.
T - They are made of different things.
E - Each asteroid moves at the same speed.
R - Rocky objects that orbit the sun
O - One asteroid has rings, at least.
I - It has moons.
D - Despite their small size, water may flow on asteroid surfaces.
1. What makes up a comet?
Comets are cosmic snowballs of frozen gases, rock and dust that orbit the Sun. When frozen, they are the size of a small town. When a comet's orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets.
2. Where do comets originate?
Most comets originate in a vast cloud of ice and dust that surrounds the solar system.
3. Why does the tail of a comet seem to grow longer as the comet travels closer to the Sun?
Comet tails get longer and more impressive as the comet gets closer to our Sun. As the comet approaches our Sun, it gets hotter and material is released more rapidly, producing a larger tail. Scientists estimate that a comet loses between 0.1 and 1 percent of its mass each time it orbits our Sun.
4. How do meteor showers occur?
A meteor shower occurs when the Earth passes through the trail of debris left by a comet or asteroid.
