The Universe for A Dollar
Objective: To construct a scale model of our solar system to develop a better understanding of the vast distances that exist between the planets and other objects in our universe.
Science Process Skills: Observing, Communicating, Measuring, Inferring, Making Models, Hypothesizing, Interpreting Data, Mathematics
Science Standards: Science as Inquiry; Abilities necessary to do scientific inquiry
Earth and Space Science; Objects in the sky & Earth in the solar system
Mathematics Standards: Number and Operations, Measurement, Data Analysis and Probability, Communication, Connections
Overview: When discussing distances between objects in our solar system and universe, we use such large numbers that it is difficult for students to comprehend those numbers and develop an accurate understanding of the spatial relationships between the objects. A dollar bill will be used to construct a scale model of our solar system in a classroom. The length of the dollar bill will represent one Astronomical Unit (AU). This same scale will also be used to develop scale distances to other objects outside our solar system.
1. What is the length of a dollar bill? ___________ inches / ___________ cm
2. You have been given 1 million dollars! (lucky you) They have been given to you in one dollar bills. If you lay them end to end, how long will the line of bills be?
a. Your estimate __________________________
b. The correct answer ______________________
c. Using a map, name a city or town that equals the distance from your school ________
Astronomical Unit
An Astronomical Unit (AU) is a unit of measurement used in astronomy. It represents the mean distance from the earth to the sun. This distance equals 150,000,000 km. If we knew the mean distance from the sun to each of the other planets in our solar system, we could calculate those distances in Astronomical Units:
Mean distance of planet from the sun
= AU(s)
Mean distance of Earth from the sun
3. Why do you think astronomers use Astronomical Units?
Mean distances of the planets from the sun (rounded)
Mercury - 58,000,000 km Saturn - 1,430,000,000 km
Venus - 108,000,000 km Uranus - 2,900,000,000 km
Earth - 150,000,000 km Neptune - 4,500,000,000 km
Mars - 228,000,000 km Pluto - 6,000,000,000 km
Jupiter - 778,000,000 km
4. Using the simple formula, calculate the distance of each planet in Astronomical Units:
Mercury __________ Saturn __________
Venus __________ Uranus __________
Earth __________ Neptune __________
Mars __________ Pluto __________
Jupiter __________
5. Using what you have learned so far, construct a scale model of our solar system using dollar bills. One dollar bill will represent one Astronomical Unit (AU). To complete your model, cut out ten small strips of paper each with a different planet's name and the sun written on them. Place the paper strips on the floor or wall at the proper scale distance from the sun.
a. How many dollar bills are needed to complete the model? __________
b. Earth will be located at the end of dollar bill number _________
6. Does this scale model help you to better understand the relationship and distances of each planet in our solar system? How?
Light Year
Light Year is a unit of measurement used to measure distance and not used to measure time. It is the distance light will travel in one year - 9,600,000,000,000 km (298,000 km per second!).
7. One Light Year equals ___________________ Astronomical Units.
8. Using the dollar bill scale, How far is one light year in dollar bills? ____________________ (remember your solar system scale was 40 dollar bills, @20 feet, long)
9. Alpha Centauri, the nearest star to our solar system, is 4.3 light years away. How many dollar bills does this represent? _______________________
10. How far is Alpha Centauri on the dollar bill scale? _________________________
DRAFT - NASA / AESP
Objective: To construct a scale model of our solar system to develop a better understanding of the vast distances that exist between the planets and other objects in our universe.
Science Process Skills: Observing, Communicating, Measuring, Inferring, Making Models, Hypothesizing, Interpreting Data, Mathematics
Science Standards: Science as Inquiry; Abilities necessary to do scientific inquiry
Earth and Space Science; Objects in the sky & Earth in the solar system
Mathematics Standards: Number and Operations, Measurement, Data Analysis and Probability, Communication, Connections
Overview: When discussing distances between objects in our solar system and universe, we use such large numbers that it is difficult for students to comprehend those numbers and develop an accurate understanding of the spatial relationships between the objects. A dollar bill will be used to construct a scale model of our solar system in a classroom. The length of the dollar bill will represent one Astronomical Unit (AU). This same scale will also be used to develop scale distances to other objects outside our solar system.
1. What is the length of a dollar bill? ___________ inches / ___________ cm
2. You have been given 1 million dollars! (lucky you) They have been given to you in one dollar bills. If you lay them end to end, how long will the line of bills be?
a. Your estimate __________________________
b. The correct answer ______________________
c. Using a map, name a city or town that equals the distance from your school ________
Astronomical Unit
An Astronomical Unit (AU) is a unit of measurement used in astronomy. It represents the mean distance from the earth to the sun. This distance equals 150,000,000 km. If we knew the mean distance from the sun to each of the other planets in our solar system, we could calculate those distances in Astronomical Units:
Mean distance of planet from the sun
= AU(s)
Mean distance of Earth from the sun
3. Why do you think astronomers use Astronomical Units?
Mean distances of the planets from the sun (rounded)
Mercury - 58,000,000 km Saturn - 1,430,000,000 km
Venus - 108,000,000 km Uranus - 2,900,000,000 km
Earth - 150,000,000 km Neptune - 4,500,000,000 km
Mars - 228,000,000 km Pluto - 6,000,000,000 km
Jupiter - 778,000,000 km
4. Using the simple formula, calculate the distance of each planet in Astronomical Units:
Mercury __________ Saturn __________
Venus __________ Uranus __________
Earth __________ Neptune __________
Mars __________ Pluto __________
Jupiter __________
5. Using what you have learned so far, construct a scale model of our solar system using dollar bills. One dollar bill will represent one Astronomical Unit (AU). To complete your model, cut out ten small strips of paper each with a different planet's name and the sun written on them. Place the paper strips on the floor or wall at the proper scale distance from the sun.
a. How many dollar bills are needed to complete the model? __________
b. Earth will be located at the end of dollar bill number _________
6. Does this scale model help you to better understand the relationship and distances of each planet in our solar system? How?
Light Year
Light Year is a unit of measurement used to measure distance and not used to measure time. It is the distance light will travel in one year - 9,600,000,000,000 km (298,000 km per second!).
7. One Light Year equals ___________________ Astronomical Units.
8. Using the dollar bill scale, How far is one light year in dollar bills? ____________________ (remember your solar system scale was 40 dollar bills, @20 feet, long)
9. Alpha Centauri, the nearest star to our solar system, is 4.3 light years away. How many dollar bills does this represent? _______________________
10. How far is Alpha Centauri on the dollar bill scale? _________________________
DRAFT - NASA / AESP
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THE UNIVERSE FOR A DOLLAR
1.0
0.4
0.7
1.5
5.2
9.5
19.3
30.0
40.0
40.0
1
64,0000
15.5
6.0
155 km / 96.3
9.9 km / 6.2 miles
275,200
42.7 km / 26.5 miles
THE UNIVERSE FOR A DOLLAR
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Venn-ing With Planets
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