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Earth Changes
4th Grade
Question | Answer |
---|---|
What is weathering? | It is the process by which rocks are broken down into smaller pieces. |
What is erosion? | It is the process by which wind and moving water carry away bits of rock. |
What is deposition? | It is the process of dropping, or depositing, sediment in a new location. |
What is a renewable resource? | Resources that are replaced as they are used. |
What is a nonrenewable resource? | Resources that CANNOT be replaced once they are used. |
What does it me to reuse? | It is to use a resource over again. |
What does it mean to reduce? | It is to cut down on the use of resources. |
Where do fossil fuels come from? | They are formed from the remains of organisms that lived long again. |
What does it mean to recycle? | It is to reuse a resource to make something new. |
What is conservation? | It is the careful management and wise use of natural resources. |
What is rotation? | It refers to the spinning of Earth on its axis. |
What is an orbit or revolution? | It is to move in a circular course. |
What is an axis? | An axis is an imaginary line that runs through both poles of a planet. |
What is a new moon? | It is moon that is dark because the lighter side is away from the sun. |
What is a first quarter moon? | It is a moon that is illuminated on its right side and is 1/4th of the way through its orbit around the earth. |
What is a last quarter moon? | It is a moon that is illiminated on the left side and is 3/4ths through its orbit around the earth. |
What is a full moon? | It is a moon that totally illuminated, faces the sun, and is 1/2 of the way through its orbit around the earth. |
What does illuminated mean? | It is to be visible. |
What are seasons? | A season is a time of the year such as spring, summer, winter, and fall. |