OBJECTIVE
1: Earth and Space Sciences
1.A: Explain the characteristics, cycles and patterns involving Earth and its place in the solar system.
1.A.3: Describe the characteristics of Earth and its orbit about the Sun (e.g., three-fourths of the Earth’s surface covered by a layer of water [some of it frozen], the entire planet surrounded by a thin blanket of air, elliptical orbit, tilted axis, and spherical planet).
Solar System
Explore our solar system and learn the characteristics of each planet. Compare the sizes of planets and their distances from the Sun. Observe the speeds of planetary orbits and measure how long each planet takes to go around the Sun.
LEARNING OBJECTIVES:
- List the planets in order from closest to the Sun to farthest away.
- Classify the planets as rocky planets or gas giants.
- Observe the scale of the solar system.
- Describe the shape of planetary orbits.
- Measure each planet’s period of revolution.
- Compare the sizes of the planets.
- Relate the presence of an atmosphere to the size of a planet.
8 VOCABULARY:
* atmosphere, gas giant, orbit, planet, rocky planet, solar system, year
RESEARCH
1. List the planets in order from closest to the Sun to farthest away.
1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupitar
6. Saturn
7. Uranus
8. Neptune
2. Classify the planets as rocky planets or gas giants.
Rocky Planets:
Mercury, Venus, Earth, Mars
Gas Giants:
Sun, Jupiter, Saturn, Uranus, Neptune
3. Observe the scale of the solar system.
see in the sketch
Total Diameter: 7,332,000,000 miles
4. Describe the shape of planetary orbits.
Orbit. Gravity from the Sun is what keeps the planets in orbit around the Sun, just as gravity from the Earth is what keeps the Moon and satellites and the space shuttle in orbit around the Earth. The reason the Moon doesn’t hit the Earth (and the Earth and other planets don’t hit the Sun) is that the Moon is moving fast enough to miss the Earth.
5. Measure each planet’s period
of revolution.
1Orbit 1 Rotation
1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupitar
6. Saturn
7. Uranus
8. Neptune
9. Pluto
6. Compare the sizes of the planets.
7. Relate the presence of an
atmosphere to the size of a planet.
8. VOCABULARY:
atmosphere: a layer of gases that surrounds planets
gas giant: A gas giant (sometimes also known as a Jovian planet after the planet Jupiter, or giant planet) is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in our Solar System: Jupiter, Saturn, Uranus, and Neptune. they are mostly composed of water, ammonia, and methane; the hydrogen and helium in Uranus and Neptune is mostly in the outermost region.
orbit: gravitationally curved path of one object around a point or another body, for example the gravitational orbit of a planet around a star.
planet: orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
rocky planet:primarily composed of silicate rocks. Within the solar system, the terrestrial planets are the closest planets to the Sun Terrestrial planets all have roughly the same structure: a central metallic core, mostly iron, with a surrounding silicate mantle.
solar system: The Solar System[a] consists of the Sun and those celestial objects bound to it by gravity, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago.
year: the amount of time it takes for a planet to make one revolution around the Sun