The Short Answer:
When you think of a day, you normally think of one hertz of day to night. That is called a solar day. On Earth, a solar sidereal day is about 24 hours. however, Earth ’ south sphere is elliptic, meaning it ’ s not a perfect set. That means some solar days on ground are a few minutes long than 24 hours and some are a few minutes short.
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Another way to measure a day is to count the come of time it takes for a satellite to completely spin around and make one full rotation. This is called a sidereal day. On Earth, a sidereal day is about precisely 23 hours and 56 minutes .
We know how long an earth sidereal day is, but how about the early planets in our solar system ? How long does it take for those planets to spin one full rotation ? And what is the best way to show the answer to this question ?
Let ’ s expect at a few options .
Option 1: A Paragraph
We can write a paragraph about how long days last on other planets .
On Mercury a day lasts 1,408 hours, and on Venus it lasts 5,832 hours. On Earth and Mars it’s very similar. Earth takes 24 hours to complete one spin, and Mars takes 25 hours. The gas giants rotate really fast. Jupiter takes just 10 hours to complete one rotation. Saturn takes 11 hours, Uranus takes 17 hours, and Neptune takes 16 hours.
Reading that paragraph took a while, and it ’ s hard to find all the numbers. Let ’ s see how it looks if we put it in a table .
Option 2: A Table
That ’ s a small moment better. We can look up and down at the numbers and can compare them more well. But wouldn ’ thyroxine it be nice if we could see how big those differences are ?
Let ’ s make a graph with these numbers !
Option 3: A Graph
To start, make a number line that starts at 0 and goes to the highest number you need to include. This first gear graph will only have Earth, Mars, Jupiter, Saturn, Uranus, and Neptune on it. We ’ ll save Mercury and Venus for late. You ‘ll see why in a moment .
The longest day among those planets is 25 hours. That means our number course will go up to 25 .
Label the count line so you remember it represents hours. And write what data the graph will have at the top.
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Along the bottom, write the names of the planets .
Make a dot above the identify of the planet next to the numeral of hours its sidereal day takes .
Our graph is coming together !
What do we do nowadays ? tinge in the area below the dot to make a bar graph .
nowadays we can easily see which planet has the longest day, the shortest day, and everything in between. This is a lot easier than reading a list of numbers, don ’ triiodothyronine you think ?
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But what do we do about Mercury and Venus ? Their days are thousands of hours long. How do we make a graph for those ?
We make a number line, but alternatively of numbers 1, 2, 3… we will use 1,000, 2,000, 3,000…
Make a number line that goes all the way up to 6,000. Along the bottom, write Mercury and Venus. Above Mercury, stigmatize a dot a little less than halfway between 1,000 and 2,000. It ’ s not going to be perfective, but that ’ s okay. now make a department of transportation a fiddling under 6,000 for Venus .
Do you think we can include Earth, Mars, Jupiter, Saturn, Uranus, and Neptune on here ? Their dots would be sol close to 0 it would be hard to tell the remainder between them. Graphs exercise good when the numbers are like in size, normally with the same numeral of digits.
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now that you know how to make a graph, you can show all kinds of information this way. You can graph the time it takes to get to school each day, the number of pieces of pizza your friends can eat, and how many people like the color blue or green. Go on and get graph !