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Sciene Misconception: Do All Planets Take the Same Amount of Time To Orbit the Sun?
Discrepant Events Research
LEGO Timeline
LEGO Story
A LEGO Lesson
Evaporation Activity
Condensation Activity
Raindrop Activity
Mass/Weight Misconception
Dissolving Misconception
Living Things Misconception
Air/Oxygen Misconception
Planetary Orbit Misconception
Surface Tension Demonstration
Air Pressure Paradox
Iodine/Starch Paradox
Air Pressure Paradox
Daytime Star Paradox
Mouse Simile
Rabbit Simile
Giraffe Simile
Bear Simile
Air Speed/Flight Demonstration
Cohesion Demonstration
Optical Illusion Demonstration
Lightning Demonstration
Twinkling Star Demonstration
Density Paradox

Science Area:  Astronomy



It takes each planet the same amount of time to orbit around the sun. 



The distance from the sun impacts the amount of time it takes for the plant to revolve around the sun.  Mercury which is the closest planet to the sun is 36 million miles away from the sun. It takes only 88 Earth days for Mercury to make its voyage around the sun.  Pluto (although no longer considered a planet) has a much longer path to follow.   Pluto is 3688 million miles away from the Sun and requires 248 Earth years to complete its period of revolution around the sun.  



Students may not realize how much distance impacts a planets revolution time around the sun. 

The further a planet is from the sun, the longer it takes for it to orbit the sun.

Suggested Activity:


Provide each student with a yardstick, ruler and modeling clay.  Place a walnut sized ball of clay on one end of the ruler and on one end of the yard stick. Hold the yardstick and ruler vertically side by side with the edge without the clay ball on the ground.  Release both at the same time.  Observe.  The shorted ruler will hit the surface first. This will demonstrate that they shorter the distance a planet has to travel, the shorter the voyage time around the sun will be. 





Source:  VanCleave, Janice.  Astronomy for Every Kid - 101 Easy Experiments that Really Work.  John Wiley and Sons, Inc. New York. 1991.  Pages 14 & 15.