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Our solar system is located in a galaxy known as The Milky Way. The Milky Way The Milky Way What is a Galaxy? What is a Galaxy? A galaxy is a group of solar systems, dust, and gas held together by gravity. Let’s read to learn more: In a Galaxy, Far, Far Away… In a Galaxy, Far, Far Away…In a Galaxy, Far, Far Away… What did you learn? How have astronomers learned about space? t p. 167
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Our Solar System
Grade 5Big Idea 5: Earth in Space and Time
SC.5.E.5.1, SC.5.E.5.2, SC.5.E.5.3
Does This Matter to Me? PSELL Big Idea 5 Student Book p. 160
This picture, courtesy of NASA, our national space program, is an artist's rendering of the planned Space Launch System as a rocket lifts off with the Orion spacecraft atop. The Orion spacecraft is already built and ready at Cape Canaveral in Florida. The Space Shuttle program provided successful low-Earth orbit missions, but NASA's heavy-lift launch vehicle will provide a new capability for human exploration beyond low-Earth orbit. The Space Launch System, shown here with Orion on it, is designed to be flexible for launching spacecraft for crew and cargo missions that will go far beyond to the moon again, to explore asteroids, and even to go to Mars. It will be people who are your age right now, maybe even you, who will be the ones to go on these exciting missions.
Talk about these questions in your group:1. How is our view of our Sun different from our view of other stars?2. How and why does the moon's appearance change over the course of a month?3. Why do the positions of the moon, stars, and planets change in the night sky?
Our solar system is located in a galaxy known as The Milky Way.
What is a Galaxy?A galaxy is a group of solar systems, dust, and gas held together by gravity.
Let’s read to learn more: In a Galaxy, Far, Far Away…
What did you learn?
How have astronomers learned about space?
t
p. 167
Sun and Stars Stars come in all different sizes. Our Sun is the standard used for comparing all
other star sizes. The biggest stars are called supergiants.
Some are 500 times larger than the Sun.
Some of the smallest stars are white dwarfs. Many are 1/100 the size of the Sun - roughly the size of Earth
pp. 167-168
What do we know about the Sun? Click on SC.3.E.5.2; SC.3.E.5 Sun - Size and Appearance
The sun is the closest star to Earth.
The sun is a big ball of hot gases.
The sun gives off two kinds of energy: light and heat. This is called solar energy.
All eight planets orbit, or revolve, around the sun. The sun is so large that more than a million
Earths could fit inside it.
Solar System
Resource Link: http://www.windows.ucar.edu/tour/link=/our_solar_system/solar_system.html
Let’s Explore Your Place In Space: Our Solar System
What objects orbit the sun?
Planets orbit the sun.What is a planet?A planet is a large ball of rock or gas that follows a path round the sun.
What else orbits the sun?moons, drawf planets, comets, asteroids
pp. 169-170
What are the eight planets?
Having trouble remembering them? Try this mnemonic device:My Very Educated Mother Just Showed Us Neptune!
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Inquiry 10: Modeling the Solar System(SC.5.E.5.3)
Student Resource pp. 173-181
Question: How can we model the distances of planets from the Sun and from each other?Make a Prediction:In a model of the solar system, the Sun and Mercury (the closest planet to the Sun) are 14 inches apart. How far do you think it is from the Sun to the farthest planet, Neptune? 120 inches 90 feet 300 feet
How are the Planets grouped? What characteristics do they share?
Inner PlanetsSize: SmallRocky and SolidFew or no moonsTemperature: Hot to warm. Mercury Venus Earth (one moon) Mars
Outer PlanetsSize: LargeComposed of gas and dustMany moonsTemperature: Cool to cold
Jupiter Saturn Uranus Neptune
Comparing Planets in Our Solar System Planet Number of Moons Length of Year
in Earth DaysMercury 0 88 Venus 0 224.7 Earth 1 365 Mars 2 687
Jupiter 63 4,329Saturn 62 10,752Uranus 27 30,660
Neptune 13 60,152
Planet Data Table Activity
Planet CharacteristicsPlanet Size Length of Its Orbit Composition of
PlanetMercury Small
Shortest Rocky No moons
Venus small Longer than Mercury but shorter than Earth’s
Rocky
No moonsEarth small Longer than Venus but
shorter than Mar’sRocky
One moonMars small Longer than Earth but
shorter than Jupiter’sRocky
No moonsJupiter Largest Planet Longer than Mars but
shorter than Neptune’s Gases and dust
Many moonsSaturn Large Longer than Jupiter but
shorter than Uranus’s Gases and dust
Many moonsUranus Large Longer than Saturn but
shorter than Neptune’s Gases and dust
Many moonsNeptune Large Longer than Uranus Gases and dust
Many moons
Accountable Talk
Interactive Notebook ReflectionComplete the sentences below to compare and contrast planet characteristics.
1. ________________ are different from ______________ in that ____________________ are ________________ than the ________________.
2. ___________ is/are similar to ______________________in that ______________________.
• .
GIZMOS – Solar S
ystem
Accountable Talk
Interactive Notebook ReflectionComplete the sentences below to compare and contrast planet characteristics.
1. ________________ are different from __________________ in that ____________________ are ________________ than the ________________.2. ___________ is/are similar to _________________________in that ______________________.
• .
GIZMOS – Solar S
ystem
How does Earth differ from other planets?
Earth is the 3rd planet from the sun. It is called the “Rocky Planet,” because it is made of rocks.
Sometimes Earth is called the “Water Planet,” because about 70% of its surface is covered with the water.
Earth orbits or revolves around the sun in 365 days, or one Earth year.
While it is orbiting the sun, it also spins like a top! It spins 1 time in 24 hours, and that is why Earth’s day lasts for 24 hours.
Earth is the only known planet where plants and animals live.
It has one moon. SC.4.E.5.4
