The solar system is the sun and all other heavenly (celestial) bodies that revolve (go around) it. The sun is at the center of the solar system and it uses a force called gravity to stop all other objects from floating off into space. Another major role of the sun is to provide heat and energy for organisms on earth to survive.
A star is a giant ball of hot gas that emits light and energy created through nuclear fusion at its center. The sun is a star. It's the closest star to earth
A planet is a celestial (heavenly) body that is in orbit around the Sun.
A moon is a natural satellite that orbits a larger object which is normally a planet. Earth's moon reflects light from the sun which allows us to see better at night.
A comet is a frozen mass of gas and dust that has an orbit through the solar system.
An asteroid is a rocky space object that can be a few feet wide to several hundred miles wide. Most asteroids in our solar system orbit in a belt between Mars and Jupiter known as the asteroid belt.
A meteorite a piece of stone or metal from space that falls to Earth's surface.
A meteor is an object from space that becomes glowing hot when it passes into Earth's atmosphere. It is similar to a meteorite only that it gets totally burnt in the atmosphere so it doesn't fall to the Earth's surface. Meteors are what we call shooting stars.
A crater is a hole caused by an object hitting the surface of a planet or moon.
crater, moon, orbit, energy, sun, solar, meteors, heavenly, gravity, earth
The _______________ is at the center of the solar system.
Another name for celestial is ______________.
A _____________ is formed when an object hits the surface of a planet or moon.
____________ means having to do with the sun.
____________ is the force that keeps heavenly bodies in place.
During the night, light from the sun is reflected by the ______________.
_____________ get burnt by earth's atmosphere.
The only planet that can support life is __________________.
All planets _____________ the sun.
The sun provides heat and ___________ so plants and animals can survive.
The video below is about the planets of our solar system. Watch it.
Our planetary system was formed 4.6 billion years ago! It consists of eight planets which all orbit our home star: the Sun. The Sun is only one of more than 200 billion stars moving about in the Milky Way! The Milky Way is the galaxy in which our solar system is located.
These eight planets are:
The order of planets from closest to farthest from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. The largest planet is Jupiter, followed by Saturn, Uranus, Neptune, Earth, Venus, Mars and, the smallest planet, Mercury.
Mercury is the closest planet to the Sun.
Jupiter is the largest planet of the solar system.
Neptune is the furthest planet from the Sun.
The planets fall into two categories based on their physical characteristics: the terrestrial planets and the gas giants.
Activity #2: Watch the video again and use the information to write the characteristics of the types of planets. Copy the table to your book.