1. CHAPTER 2 LESSON 2
THE SOLAR SYSTEM

2. INTRODUCTION
WHAT IS THIS A PICTURE OF?

3. INTRODUCTION
HOW IS THIS DIFFERENT THAN EARTH’S MOON?

4. INTRODUCTION
HOW IS THIS LIKE EARTH’S MOON?

5. INTRODUCTION
WHAT OTHER OBJECTS ARE IN SPACE?

6. SOLAR SYSTEM
The solar system is made up of the Sun and everything that orbits it.

7. SOLAR SYSTEM
The solar system formed from a cloud of gas and dust that pulled together due to the force of gravity.

8. SOLAR SYSTEM
The Sun is a star that formed at the center of the solar system.

10. SOLAR SYSTEM
The other objects in the solar system formed from leftover gas and dust pulled by gravity into a disk.

11. FORMATION OF THE SOLAR SYSTAEM

12. CHARACTERISTICS OF PLANETS
1. Orbits the Sun
2. Is massive enough to be nearly spherical in shape
3. Has no other large object in its orbital path.

13. SOLAR SYSTEM

14. PLANET FACTS
All eight planets revolve in the same direction around the Sun.

15. PLANET FACTS
The closer a planet is to the Sun, the faster it revolves.

16. SOLAR SYSTEM
The most distant planet is Neptune, which is about 30 AU from the Sun

17. DWARF PLANETS Orbit the Sun Nearly spherical in shape
Share their orbital paths with other objects of similar size

19. MOON
A natural satellite that orbits an object other than a star.

20. ASTEROIDS
Small, rocky objects that orbit the Sun.

21. ASTEROIDS
There are many of these objects in the asteroid belt between the planets Mars and Jupiter.

22. COMETS
Small, icy objects that orbit the Sun and develop tails as they get close to the Sun.

23. METEOROIDS
Solid bits of debris that travel through the solar system.

24. METEOR
A meteoroid that passes through Earth’s atmosphere produces a streak of light

25. METEORITE
A meteoroid reaches Earth

27. INNER PLANETS
CLOSE TO THE SUN.

28. INNER PLANETS
THEY ARE ROCKY

29. INNER PLANETS
FORMED FROM HEAVIER ELEMENTS

30. INNER PLANETS
HAVE FEW OR NO MOONS.

31. INNER PLANETS
ROTATE MORE SLOWLY

32. OUTER PLANETS

33. OUTER PLANETS
MADE UP MAINLY OF GASES.
CALLED THE “GAS GIANTS”.

34. OUTER PLANETS
LARGER THAN THE INNER PLANETS.

35. OUTER PLANETS
HAVE SYSTEMS OF RINGS.

36. OUTER PLANETS
HAVE MANY MOONS.

37. OUTER PLANETS
HAVE THICK ATMOSPHERES.

38. OUTER PLANETS
The largest planet in the solar system is Jupiter.

39. OUTER PLANETS
Saturn is the only planet that has rings that are easy to see.

40. OUTER PLANETS
Uranus and Neptune appear to be blue because of the amounts of the gas methane in the atmosphere.