Unit 5-Earth & Univ.
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| An object is pulled to Earth by | gravity
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| Gravity is the force that determines the | weight of matter
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| Because the earth rotates on its axis, we have | day and night
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| Why does almost all of earth have different seasons? | Earth is tilted on its axis as it revolves around the sun during a year.
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| How long does it take Earth to revolve around the sun? | One year
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| If the Eastern Hemisphere is experiencing nighttime, where is the sun? | In the Western Hemisphere
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| What would be a demonstration of how the force of gravity pulls objects towards the center of Earth? | Throwing a ball in the air and it falls to the ground.
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| When the sun's rays are more directly over the northern hemisphere, what season would the US experience? | Summer
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| What would happen if the Earth rotated faster? | Our days would be shorter
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| Where does the sun rise? | The east
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| Where does the sun set? | The west
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| Why would a satellite orbiting Earth most likely fall into the atmosphere? | Gravity's pull
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| There are 88 named constellations. | True
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| Constellations are a group of stars. | True
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| Constellations are usually named after animals or people in stories. | True
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| All the constellations can be seen anywhere on a clear night. | False
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| Why do we have a day that is 24 hours long? | It takes 24 hours for the Earth to rotate once around the sun.
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| Why would a shadow of a tree move from one side to another during different times of the day? | Because the Earth rotates on its axis
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| What causes day and night? | The rotation of Earth on its axis.
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| Why does Earth have different seasons? | Because the Earth tilts on its axis as it revolves around the sun.
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| What part of Earth receives more solar energy? | The equator.
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| How does the heat from the sun affect the temperature of our atmosphere? | The temperature is always changing.
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| What type of star is the sun? | A medium-sized star.
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| Star | a massive ball of gas in outer space that gives off heat, light and other forms of radiation
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| Radiant energy | energy that does not need matter to travel; light
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| Season | a period of the year determined by the position of Earth as it revolves around the sun
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| Galaxy | a group of solar systems, dust, and gas held together by gravity; our solar system is part of the Milky Way galaxy
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| Orbit | the circular or elliptical path of an object as it revolves around another object
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| Astronomy | the study of the properties and behavior of bodies in outer space
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| Space | the large, empty part of the universe that does not contain any matter
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| Constellation | a particular area of the sky; a group of stars usually named for animals or people in stories.
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| Axis | an imaginary line that an object spins or revolves around
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| Telescope | an instrument used to observe objects that are far away
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| Rotate | turning around on an axis; spinning
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| Universe | everything that exists in, on and around the Earth
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| Small stars are brighter than large stars. | False
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| Stars are different colors depending on how hot they are. | True
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| The brightness of a star is called magnitude. | True
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| Very hot stars are blue and the coolest stars are red. | True
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| The sun is the source of light. | True
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| The sun is a huge sphere of burning gas. | True
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| Hydrogen keeps a star shining. | True
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| Stars close to Earth appear brighter. | True
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| The moon and sun are both stars. | False
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| The sun's light is so bright that stars cannot be seen during the day. | True
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| Which is similar to the sun in terms of composition? | stars
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| What would happen if Earth rotated faster? | Each day would be shorter.
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| Why does the sun appear to rise in the east and set in the west? | Because the Earth rotates on its axis.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Pamela Hebert
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