When is a Planet not a Planet Wonders U5W4

Reread Pg 407. What does this section describe?

Tags

CCSS.RI.4.5

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

Why did astronomers have a problem with Pluto? (PG 408-409)?

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CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RL.5.2

CCSS.RL.6.2

How does the diagram on page 410 help you understand the planets' orbits?

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CCSS.RI.1.5

CCSS.RI.2.5

CCSS.RI.K.5

What was the problem with the dictionary definition of "planet"?

How does the size and gravity of a planet affect other objects around it?