1. The Solar System

2. What is the Solar System?
The Solar System is made up of the sun, the planets, their moons, asteroids, and comets.

3. Order of Planets

4. Order of Planets

5. Solar System Vocabulary
Solar System: The sun together with the eight planets and all other celestial bodies that orbit the sun.
Outer Planets: Any of the four planets, Jupiter, Saturn, Uranus, Neptune, with orbits outside that of Mars.
Inner Planets: Any of the four planets, Mercury, Venus, Earth, and Mars, whose orbits are closest to the sun.
Telescope: An arrangement of lenses or mirrors or both that allows the observation of distant objects
Axis A straight line about which a body or geometric object rotates or may be conceived to rotate.
Planet A celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves

6. Solar System Vocabulary
Orbit: The path of a celestial body or an artificial satellite as it revolves around another body.
Rotation: The act or process of turning around a center or an axis: the axial rotation of the earth.
Star: A self-luminous celestial body consisting of a mass of gas held together by its own gravity.
Constellation A formation of stars perceived as a figure or design.

7. Planet Scale

8. How big is outerspace?
YouTube - Bill Nye The Science Guy on Outerspace (Full Clip)

9. The Sun The sun is a star. It is at the center of our Solar System.
The eight planets orbit around the sun.
It is made up of swirling gases and nuclear reactions.
The sun provides the Earth with heat and light.
The sun is very, very hot.

10. Stars in the night sky
Constellations

11. How is the Solar System made Up?
The Solar System is made up of:
the inner planets
Mercury, Venus, Earth, & Mars
The asteroid belt
Thousands of asteroids are in this belt. Asteroids are rocks that orbit around the sun.
The outer planets
Jupiter, Saturn, Uranus, Neptune
Comets are also part of the Solar System.

12. The Solar System is made up of: the inner planets Mercury, Venus, Earth, & Mars
There are four inner planets
They are small
They are solid
They have no more than two moons
The closer the planets are to the sun the faster they revolve

13. Outer Planets Jupiter, Saturn, Uranus, Neptune
No surface, because they are made of gasses
There are four outer planets
The biggest outer planet is Jupiter
All of the outer planets have rings

14. What is a planet? Saturn Uranus Neptune
A planet is a body which revolves around a sun. It has no light of its own, but reflects the light of the sun. It is in orbit around the sun. Our Solar System contains 8 planets.
Mercury
Venus
Earth
Mars
Jupiter
Saturn Uranus Neptune

15. Bill Nye Gravity

16. How far are the planets of our solar system apart?

17. Technology How can we see the planets and the stars? Space Ships
Telescopes
Satellites

18. Which one is the smallest? Which one is the largest?
Can you put these in size order?
Place the following in order from largest to smallest.
Moon
Sun
Earth

19. Answer: Sun, Earth, then moon
The sun is the largest
Next in size is the Earth.
The moon is smaller than the Earth.

20. The Earth: -is the third planet from the Sun,
-rotates on its imaginary axis counterclockwise every
24 hours or 1 day,
-appears blue in space
because it is 70% water,
-revolves around the sun every
365 days or 1 year.

21. The seasons and the tilt of the Earth

22. Moon Phases

23. Which of these is the next phase of the moon?
New Moon --- Waxing Crescent --- ?
F Full Moon
G Waning Crescent
H First Quarter
J Waxing Gibbous

24. The next major phase of the moon would be…
First quarter.

25. The moon revolves around -
F itself
G the Earth
H the sun
J the solar system

26. The Moon
The moon is a satellite that revolves around the Earth

27. The moon revolves or orbits the Earth once every 29 days.
We all ways see the same side of the moon because the moon rotates and revolves at about the same speed.

28. Moon Phases Bill Nye

29. Rotation causes day & night.
Rotation is the turning or spinning of the Earth in one place on its imaginary axis.
Rotation of the earth on its axis causes day & night. (answer A).

30. Which of these is caused by the turning of the Earth?
F Summer and winter
G Stars
H Day and night
J Moon phases

31. The revolution of the Earth around the Sun takes-
A a day & night or 12 hours
B a week or 7 days
C a month or days
D a year or 365 days

32. The revolution of the Earth around the sun
Takes 365 days
or one year.
The Earth is a satellite of the Sun
NOTE:
Due to the tilt of the Earth’s axis during revolution, the Earth experiences seasons.