EARTH SCI VENN DIAGRAM

Compare and Contrast the Planets

• Venus has a lower mass than Earth, therefore lower gravity; objects weigh less than on Earth.
• It has a significantly higher surface pressure, which means a higher temperature, as seen with the planet's average temperature of 464°C. It also has less precipitation due to lower water vapor.
• The atmosphere is primarily composed of carbon dioxide, which adds to the factors that increase the temperature. Since CO2 is a greenhouse gas, its presence results in a significant increase with a +523 change in temperature, as compared to Earth with a +33 change in temperature caused by greenhouse gases.
• Since Venus is the closest to the sun among the three, the planet has the fastest orbital velocity, therefore having the shortest orbital period.
• On the other side, Venus has the longest day among the three. A day on Venus is equivalent to 243 Earth days. Scientists suggest that this might be due to Venus' dense atmosphere.

• Because the Earth has the greatest mass among the three, therefore the geatest gravity, objects also weigh the heaviest than on Venus and Mars.
• The atmosphere is primarily composed of nitrogen and oxygen, which are essential to supporting life. The average temperature is 15°C, which is suitable for organisms to survive—not too cold nor too hot.
• Earth has a magnetic field that protects the planet and those living on it from radiation from the solar wind.
• The Earth's distance from the sun is the right measurement for temperature to allow liquid water to exist and support life on the planet.

• Because Mars has the lowest mass among the three, therefore the lowest gravity, objects weigh less than those on Venus and Earth.
• The atmosphere is almost similar to that of Venus'. Even though the atmosphere is composed of 96% CO2, its very thin atmosphere (1% of Earth's atmosphere) causes the low temperature of Mars. Mars's thin atmosphere makes it nearly impossible to support life.
• Mars' distance from the sun is the farthest among the three, which is also a cause of the planet's low temperature.

• Venus and Earth have a similar diameter, gravity and mass

• Earth and Mars has a similar length of day

• Atmosphere is primarily composed of CO2.
• Absence of global magnetic field.

• Presence of Nitrogen in the atmosphere.
• Carbon Dioxide as the major greenhouse gas.
• All Planets are in the Goldilocks Zone.