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# Science Station Quiz

If the sun was the size of a soccer ball, how far away is Neptune from the sun? 753 meters
In our scale model, where would you have to go to get to the nearest star? Caracas, Venezuela
If the sun was the size of a soccer ball, what would be the diameter of Mercury, Earth and Jupiter? Mercury: 0.8 mm, Earth: 2 mm, Jupiter: 24 mm.
If the sun was the size of a soccer ball , what is range of sizes for the inner planets and what is the range of size for the outer planets? Inner: 0.8 mm-2mm. Outer: 8 mm-24 mm.
If the sun was the size of a soccer ball, what objects could represent Earth, Mercury, Jupiter and Neptune. E: a peppercorn, M: poppy seed, J: a rubber bouncy ball, N: a bead
How is gravitational pull affected by distance? Please explain in words and with a formula. The outer planets that are farther away from the sun move slower because the gravitational pull is less and have more distance to travel. m/d^2
Name 2 reasons why it takes longer for planets farther from the sun to orbit compared to those closer? Because the gravitational pull isn’t as strong and they have a long distance to cover.
If you were to graph the distance of a planet against its speed, what would be the shape of a graph and what is the reason for this shape? The graph would show a hyperbola curve because the distance and speed are in inverse proportion to each other (inverse square law applies).
When do the comet’s tails lengthen? And how long do they get? 100,000 km. The tails lengthen when the comet travels closer to the sun, and it shortens as it travels away from the sun.
What is the speed of Halley's comet as it approaches the sun 175 mph
What can disturb a comet’s orbit? Gravitational pull of different things, collisions or a push from a passing star.
What is the general range of orbital periods for comets? What is the definition for a short-term comet and a long-term comet? The kick from outer planets keeps them farther away from the sun and they don’t sublimate. When its near the sun it sublimates. A short term comet takes less then 200 years to orbit..A long term comet is a comet that takes longer then 200 years to orbit.
When and how were comets formed? Formed when the solar system was first being created. They may be debris left over from the time when the planets formed.
Why are comets preserved for so long? Because they’re far from the sun and there’s nothing to make them sublimate.
What direction does a comet’s tail point and why? It points away from the sun because of the solar winds emitted from the Sun. Because of these solar winds the comet’s tail will always point away from the Sun, irrespective of the way it was traveling.
What is a radiant? The place where all the meteors appear to be coming from (in a shower).
Why is the timing of meteor showers so predictable and with such accuracy? Meteor showers happen when in it’s orbit, the Earth crosses the path of a comet. We have the same orbit every year, so we cross the comet’s orbit at the same time every year.
What are the possible fates of a meteor entering the Earth’s atmosphere? If a meteor happens to run into the Earth, friction with air molecules in our atmosphere would cause them to burn up completely.
Which meteor do scientists think caused the extinction of the dinosaurs and where did it land? It hit the Yucatan Peninsula in Mexico, name unknown (doesn’t say in the packet...?). The crater that it made is 130 miles across, and NASA estimates that the asteroid would have been 6 to 12 miles in diameter.
What is a meteorite, meteoroid and meteor? How are they different? A meteorite is one that makes it down to the earth. A meteor streaks through the atmosphere A meteoroid is a piece of dust or rock moving through space.
Created by: kschool