1. Chapter 17
Lesson 2

2. Vocabulary The rocky planets are Mercury, Venus, Earth and Mars.
The Gas Giants are Saturn, Uranus, Jupiter and Neptune.
Space Probes are spacecrafts that gather data without a crew.

3. Space Probes Space Probes
Space probes are spacecrafts that gather data without a crew. Space probes are equipped with scientific instruments and cameras. They collect information about the planet’s properties.
Space probes are spacecrafts that gather data without a crew. Space probes are equipped with scientific instruments and cameras. They collect information about the planet’s properties.

4. Diameters Compared to Earth
Mercury 0.4
Venus 0.9
Mars 0.5
Jupiter 11.0
Saturn 10.0
Uranus 4.0
Neptune 4.0
Pluto 0.2

5. Questions What are the four gas giants? What are the rocky planets?
What is Neptune’s diameter compared to earth?
How much of Mercury’s core is made up of iron?

6. ANSWERS The four gas giants are Jupiter, Saturn, Uranus, and Neptune.
The rocky planets are Mercury, Venus, Earth, Mars.
The diameter of Jupiter is 4.0
Mercury’s core is made up of ¾ of iron.

7. PLANETS Sun MERCURY VENUS EARTH MARS JUPITER SATURN URANUS NEPTUNE
PLUTO is no longer a planet!
It’s a dwarf planet!

8. THE END We hope you enjoyed our show!
By: Reilly O’Neill, Autumn Wellock, Elyzabeth Jackson and Olivia MacDonald