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Space Objects Teacher Sheet

Space Objects Teacher Sheet By NASA, ESA and G. Bacon (STScI) [Public domain], via Wikimedia Commons

Introduction

Now that your students have studied the differences between a planet and a dwarf planet and looked at how scientific knowledge is subject to modification as new information challenges prevailing theories, they should solidify their understanding of these concepts by looking at these images of planets and dwarf planets and deciding on how to classify them.


PLANET OR DWARF PLANET?

Students can either writer "Planet" or "Dwarf Planet" next to the image or they can cut out the images and group all the planets together and group all the dwarf planets together.

ceres
NASA, ESA, J. PARKER (SOUTHWEST RESEARCH INSTITUTE), P. THOMAS (CORNELL UNIVERSITY), AND L. MCFADDEN (UNIVERSITY OF MARYLAND, COLLEGE PARK)

Shares its orbital space with other bodies of similar size.

Answer: Dwarf Planet

jupiter
NASA/JPL-Caltech

Gravitationally dominant

Answer: Planet

mercury
NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Doesn't share its orbital space with other bodies of similar size

Answer: Planet

eris
NASA, ESA, and M. Brown

Not gravitationally dominant

Answer: Dwarf Planet

eris
A. Feild (Space Telescope Science Institute)

Shares its orbital space with other bodies of similar size

Answer: Dwarf Planet

neptune
NASA/JPL-Caltech

Doesn't share its orbital space with other bodies of similar size

Answer: Planet

earth
NASA

Gravitationally dominant

Answer: Planet

makemake
Ann Feild (Space Telescope Science Institute)

Not gravitationally dominant

Answer: Dwarf Planet

This teacher sheet is a part of the Is Pluto a Planet? lesson.

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AAAS