McGraw-Hill Mathematics: Grade 6, Chapter 8

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Interplanetary Weigh Ins

How Much Would You Weigh on Another Planet?
http://kids.msfc.nasa.gov/Puzzles/Weight.asp

Visit this Web site to see what the Earth weights of objects become on the moon and on different planets.

• Read the information about gravity.
• To use the online calculator, enter a weight in the box labeled "Type Your Weight on Earth."
• Click a planet or the moon and read what the weight would be on that planet or the moon.
• Use the online calculator to find out what Earth weights of 20, 40, 60, 80, 100, and 120 pounds would weigh on the moon, Neptune, Mars, and Venus.
• Use this information to complete the tables below.

1. Complete the tables below. If you wish, find your weight on the moon and the other planets. Then write the ordered pairs.
   
   

   Moon

   Earth Weight	Moon Weight	Ordered Pair
   20
   40
   60
   80
   100
   120

   Your weight                         Your weight on the moon                   
   
   
   

   Neptune

   Earth Weight	Neptune Weight	Ordered Pair
   20
   40
   60
   80
   100
   120

   Your weight                         Your weight on Neptune                   
   
   
   

   Mars

   Earth Weight	Mars Weight	Ordered Pair
   20
   40
   60
   80
   100
   120

   Your weight                         Your weight on Mars                   
   
   
   

   Venus

   Earth Weight	Venus Weight	Ordered Pair
   20
   40
   60
   80
   100
   120

   Your weight                         Your weight on Venus                   
   
   
   
2. Draw a coordinate graph like the one below for each set of ordered pairs. You will have four graphs, one for the moon, one for Neptune, one for Mars, and one for Venus. Use one sheet of graph paper for all four graphs, but make each line a different color. Make a key for your graph that shows what each color represents.
   
   

   Moon, Neptune, Mars, or Venus Weight (Pounds)	140
   	130
   	120
   	110
   	100
   	90
   	80
   	70
   	60
   	50
   	40
   	30
   	20
   	10
   	0	10	20	30	40	50	60	70	80	90	100	110	120	130	140

   Earth Weight (Pounds)

   
   
   
3. Use your graph to estimate the weight on Venus of an object that weighs 65 pounds on Earth.
   
                                                                                                                                   
   
   
4. Use your graph to estimate the weight on Earth of an object that weighs 20 pounds on Mars.
   
                                                                                                                                   
   
   
5. Use your graph to estimate the weight on Earth of an object that weighs 15 pounds on the moon.
   
                                                                                                                                   
   
   

Math at Home

Today I explored a Web site that showed what Earth weights of objects become on the moon and on other planets. On a graph comparing Earth weight with weight on the moon, I used                  weight as the first coordinate, and                  weight as the second coordinate.

You can find out more about this topic by asking your teacher or parents to show you other Web sites.