Science Module 8, Lesson 08.02
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Science
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4th Grade
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Lee-Ann Young
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34 Slides • 24 Questions
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Science Module 8, Lesson 08.02
The Solar System
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What will I learn in this lesson?
I will be able to:
-recognize and describe the objects of the Solar System.
-identify Earth's position in the Solar System.
-identify and describe the characteristics of objects in our Solar System.
-differentiate between the objects in our Solar System.
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The Solar System
Our Solar System has many different objects that are all held together by gravity. In the center of our Solar System is our star player, the Sun.
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The Solar System
Our Solar System contains the following:
• One star (the Sun)
• Eight planets
• 566,000 asteroids
• 3,100 comets
• 181 moons
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Moon, Planets, and Other Things
In our galaxy, there are billions of stars. Around each star are objects that orbit or revolve around it. Eight planets orbit the Sun. Some of these planets have moons that orbit or revolve around them. At the edge of the galaxy, giant rocks called asteroids orbit the Sun. You can also find comets, with their bright, colorful tails, orbiting the Sun.
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The Sun
The Sun is an example of a star. A star is a large burning ball of gas. The Sun is the center of our Solar System. All planets, comets, and asteroids orbit, revolve around it.
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Planet
A planet is a large, round body that orbits or revolves around a star. In our Solar System, there are eight planets that orbit, revolve around, the Sun. The Earth, our home planet, is the third planet from the Sun.
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Moon
A moon is a natural object that orbits, revolves around, a planet. A planet can have more than one moon and many do. There are many moons in the Solar System, but the best known example is our Moon, which orbits or revolves around the Earth.
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Asteroid
An asteroid is a rocky or metallic object that orbits, revolves around, the Sun and is much smaller than a planet. There are many asteroids in the Solar System, with most of them found in one of two asteroid belts that orbit, revolve around the Sun.
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Comet
Comets are made mostly of ice, gas, rock, and dust. A comet orbits, revolves around, the Sun.
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All in a Solar System
In our Solar System, there are planets, asteroids, comets, moons, and stars, including the Sun. You can find asteroids orbiting our Sun in large groups called asteroid belts.
How many objects can you identify in the following images?
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Can you identify the object in the picture?
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Can you identify the object in the picture?
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Multiple Choice
Can you identify the object in the picture?
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Did you know: Shooting stars are small pieces of dust or rock?
If you ever get to see a shooting star, they are pretty spectacular to watch! Shooting stars are actually tiny pieces of rock or dust that start to burn as they enter into Earth's atmosphere.
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Shooting Stars
A shooting star is a small piece of rock that has broken off of an asteroid. As it gets pulled into Earth's atmosphere, it starts to burn up causing a brief streak of light. Shooting stars are called meteors.
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The Earth's Position
Sometimes things have a specific order. There is a specific order in the Solar System. The eight planets that orbit around the Sun have a particular order in terms of how far they are from the Sun.
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The Order of the Planets
Mercury is the closest planet to the Sun, and Neptune is the farthest planet from the Sun.
Which planets are in between Mercury and Neptune?
Let's explore to find out the order of the planets in our Solar System.
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Mercury
Mercury is the first planet from the Sun, which makes it the closest planet to the Sun.
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Venus
Venus is the second planet from the Sun.
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Earth
Earth is the third planet from the Sun.
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Mars
Mars is the fourth planet from the Sun.
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Jupiter
Jupiter is the fifth planet from the Sun.
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Saturn
Saturn is the sixth planet from the Sun.
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Uranus
Uranus is the seventh planet from the Sun.
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Neptune
Neptune is the eighth planet from the Sun, which makes it the farthest planet from the Sun.
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You can see some planets in the night sky from Earth.
On some nights, you can see the planets Mercury, Venus, Mars, Jupiter, and Saturn without a telescope. In this picture, the brightest object in the night sky is Venus. If you look to the left, you will see Jupiter, which is slightly less bright than Venus. Jupiter is the biggest planet in our Solar System.
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The Right Order
A mnemonic device is a phrase where the first letter in each of the words is the same as the first letter of each word you are trying to remember. This mnemonic device can help you remember the correct order of the planets. My (Mercury) Very (Venus) Energetic (Earth) Mother (Mars) Just (Jupiter) Served (Saturn) Us (Uranus) Nachos (Neptune).
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Write Like a Scientist- Optional
In your Science Notebook, create a drawing of the Solar System that includes the Sun and all eight planets. Draw the planets in order from closest to farthest from the Sun.
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Enrichment- Optional
Are you the type of student who likes a challenge? If so, then this activity is for you! In this activity, you will create a model of our Solar System showing the correct order of the planets starting at the Sun. Use the image of the model to help guide you.
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Discovering the Characteristics
Our Solar System is home to a sun, planets, moons, asteroids, and comets. Each of these have different characteristics. You may already be familiar with the characteristics of some of these. For example, we know that the Sun is a giant fiery ball of gas and that the Earth is made mostly of solid and molten rock.
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Bright Like a Comet
Comets, with their bright heads and glowing tails, zip through the Solar System as they orbit the Sun. Each of the different objects in the Solar System has its own unique set of characteristics.
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Practice Like a Scientist- Optional
Create a poster of the Solar System. You must include the following on your poster:
-the Sun
-eight planets
-at least one comet
-a moon orbiting, revolving around a planet
-at least one asteroid
-a label to identify each object
-a description of each object
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Practice Like a Scientist- Optional
In this activity, you will create a Solar System foldable that will help you organize and compare the different objects in a Solar System. Please see page 13 of the lesson for detailed directions.
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Lesson Summary
In this lesson, you learned about the characteristics of objects in our Solar System. Our Solar System is made up of moons, planets, asteroids, comets, and the Sun, which is a star. Planets, asteroids, and comets orbit the Sun, while moons orbit the planets.
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Lesson Summary
The planets are in a specific order in terms of their distance from the Sun. Out of the eight planets in our Solar System, Earth is the third planet from the Sun. Each object in the Solar System has unique characteristics that help us to identify it. Learning about an object's characteristics helps to better understand its role in our solar system.
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What Did I Learn?
Now I can
-recognize and describe the objects of the Solar System
-identify Earth's position in the Solar System
-identify and describe the characteristics of objects in our Solar System
-differentiate between the objects in our Solar System
Science Module 8, Lesson 08.02
The Solar System
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