Term
| A --- is a group of objects in space that move around a central star. |
|
Definition
|
|
Term
| The --- is the source of almost all the energy in our solar system. |
|
Definition
|
|
Term
| What does the Sun provide to Earth? |
|
Definition
|
|
Term
| What is our solar system made up of? |
|
Definition
| the Sun, nine planets, the planets' moons, asteroids, and comets |
|
|
Term
| The --- is a star (a burning sphere). |
|
Definition
|
|
Term
| All the objects in a solar system revolve around a ---. |
|
Definition
|
|
Term
| A --- is a large object that moves around a star. |
|
Definition
|
|
Term
| Each planet revolves in an elliptical --- around the sun and rotates on its own axis. |
|
Definition
|
|
Term
| An --- is the imaginary line that run through both poles of a planet that it rotates around. |
|
Definition
|
|
Term
The planets that are closest to the Sun) are called the
--- planets. |
|
Definition
|
|
Term
| The four inner planets are: |
|
Definition
| Mercury, Venus, Earth, and Mars |
|
|
Term
| Earth is the --- planet from the Sun. |
|
Definition
|
|
Term
| How many natural satellite does Earth have? |
|
Definition
|
|
Term
| --- is the only planet with water. |
|
Definition
|
|
Term
| The --- is a natural satellite of Earth. |
|
Definition
|
|
Term
| --- are the changes in apparent shape of the moon. |
|
Definition
|
|
Term
| Why does the moon appear to glow? |
|
Definition
| The moon reflects light from the Sun. |
|
|
Term
| Why does the apparent shape of the moon change? |
|
Definition
| As the moon moves through its orbit around earth different amounts of its lit half can be seen from Earth. |
|
|
Term
| How long is one of the moon's phases? |
|
Definition
|
|
Term
| Moon's gravity causes --- on Earth. |
|
Definition
|
|
Term
| --- are the daily changes in the local water level of the ocean. |
|
Definition
|
|
Term
| The five outer planets are: |
|
Definition
| Jupiter, Saturn, Uranus, Neptune, and Pluto |
|
|
Term
| --- --- are large spheres made up mostly of gases. |
|
Definition
|
|
Term
| Which planets are considered "Gas Giants"? |
|
Definition
| Four of the five outer planets (Jupiter, Saturn, Uranus, Neptune) |
|
|
Term
| What are the rings on the Gas Giants made of? |
|
Definition
| tiny bits of dust, ice crystals and small pieces of rocks |
|
|
Term
| Planets that are closer to the Sun orbit --- than the outer planets. |
|
Definition
|
|
Term
| --- is the spinning movement of planets. |
|
Definition
|
|
Term
| --- is the movement of a planet in orbit around the sun. |
|
Definition
|
|
Term
| Earth takes --- to complete a revolution around the Sun. |
|
Definition
|
|
Term
| An --- is the path an object takes when revolving around the another object. |
|
Definition
|
|
Term
| --- are small and rocky objects that move around the Sun. |
|
Definition
|
|
Term
| Most asteroids are scattered between --- and---. |
|
Definition
|
|
Term
| A --- is a small mass of dust and ice that orbits the Sun. |
|
Definition
|
|
Term
| A --- is an object that moves around another object. |
|
Definition
|
|
Term
Every planet except
--- and--- has at least one moon. |
|
Definition
|
|
Term
| A --- is a tool people use to observe distant objects. |
|
Definition
|
|
Term
| A --- telescope works the way optical telescopes do but instead of collecting and focusing light they collect and focus invisible radio waves. These telescopes are not affected by bad weather. |
|
Definition
|
|
Term
| A --- telescopes collects and focuses light. |
|
Definition
|
|
Term
| --- optical telescopes use mirrors to magnify an object. |
|
Definition
|
|
Term
| --- optical telescopes use lenses to magnify an object. |
|
Definition
|
|
Term
| A --- --- are vehicles sent to explore space equipped with cameras, instruments, and other tools. |
|
Definition
|
|
Term
| Why are space probes sent out instead of sending people out? |
|
Definition
| They are sent because of the danger and the distance. |
|
|
Term
| What types of information do space probes get? |
|
Definition
| Space probes gather ojbects and data which is sent back and studied. Examples of objects and data include rocks and pictures. |
|
|
Term
| What are the limitations of a crewed mission? |
|
Definition
| A crewed mission is limited because a crew needs food, water and an oxygen supply. |
|
|
Term
| How is information gathered by space probes valuable to scientist? |
|
Definition
| Scientists study condition in other parts of our solar system to learn about the formation of stars and planets. It also helps develop technology that can be used on Earth. |
|
|
Term
| What have scientists learn from studying Mars? |
|
Definition
| Scientists may have learned that liquid water may have once existed therebecause there are sedimentary rocks on Mars. |
|
|
Term
| Because Earth is tilted on its axis and revolves around the Sun, we have... |
|
Definition
|
|
