Lab Report_The Planets-5-1 (1)

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Clovis Commuity College *

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Geology

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Dec 6, 2023

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Geology Name: ________________________ The Planets Lab Report Complete your responses in a color other than black or red . Part 1: Scale model of Earth layers 1. Tape three sheets of paper together end to end to make a long sheet. Fold it in half the long way to find the center line. 2. Near one end of the center line, make a dot in pencil. This represents the center of the Earth, so label it "Center." Then, using a protractor, draw a line in pencil at 7.5 degrees on each side of the center line so that you have a 15-degree wedge. Using a meter stick or straight edge, extend each of these lines all the way to the edge of the paper. 3. The radius of the Earth is 6371 km. On your model, how big is this? 6371 km * 100,000 cm/km = 63.71 cm 10,000,000 4. Mark another dot at that distance along your two lines from the center. These two points are on the surface of the Earth. 5. Repeat steps 3 and 4 for each of the boundaries between Earth's layers: convert the real depth of each boundary in km to the scaled model distance in cm (fill in the appropriate table below ), write the depth on the outside of the line, next to the mark. Boundary Depth below Earth's surface (km) Depth (scaled, cm) Inner core/outer core 5155 55.15 Outer core/lower mantle 2885 28.85 Lower mantle/upper mantle 670 6.7 Upper mantle/crust 7 (oceanic); 40 (continental) 0.07(oceanic);0.4(continental ) 6. Make a large drafting compass out of string and a pencil (or other writing device) and use it to draw the rounded surfaces. 1

Planets Lab Report 7. Take a picture of your completed model and insert it here: Part 2: Scale Model of the Solar System Distance from Sun (AU) Distance from Sun (AU) Mercury 0.39 Jupiter 5.203 Venus 0.732 Saturn 9.539 Earth 1 Uranus 19.18 Mars 1.524 Neptune 30.06 Asteroid belt 2.2 – 3.2 Kuiper belt 30 – 50 2

Planets Lab Report 1. Subtract the distances to get the distance between each planet and the next. Then, using a conversion factor of 15 cm per AU, calculate the distance in cm for each of the planets in your model. Record your distances in the second and third columns on the table below (i.e. from the sun to Mercury, the distance is 0.39 AU per the table above. To convert to cm: 0.39 AU * 15 cm / AU = 5.9 cm). The resulting scale of this solar system model will be 1:10,000,000,000. 2. After you have determined the scale distances, lay out your model of the solar system on the floor. (You can go into a hallway, outside, or anywhere you have enough space.) Use everyday items (cups, bowls, books, etc.) to represent each object in the model. Record the objects you chose in the fourth column in the table below: 1. Distance in AU Converted distance in cm 2. Everyday Object Sun – Mercury 0.39 5.9 Black Pen - Pink Pen Mercury – Venus 0.342 5.13 Pink Pen – Dark Green Pen Venus – Earth 1 15 Dark Green Pen – Dark Blue Pen Earth – Mars 1.524 22.86 Dark blue Pen – Red Pen Mars – Jupiter 5.203 78.045 Red Pen – Elephant Jupiter – Saturn 9.539 143.085 Elephant – Blue Pot Saturn – Uranus 19.18 287.7 Blue Pot – White Potted Plant Uranus – Neptune 30.06 450.9 White Potted Plant – Light Blue Potted Plant 3. Take a picture of your model and insert it here: 3

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