Exploring Space
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| satellite | A satellite is something small or less powerful that orbits around something bigger. It often describes a body in space, such as an artificial satellite that orbits the Earth and beams down signals that power devices like cell phones.
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| spacecraft | a craft capable of traveling in outer space; technically, a satellite around the sun
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| space exploration | the investigation of the space using telescopes, satellites, space probes, spacecraft, and associated launch vehicles.
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| telescope | an instrument that is used to view distant objects. If you want to look at the planets, you can use a telescope.
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| astronomer | A scientist who studies the objects in the sky, including planets, galaxies, black holes, and stars
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| galaxy | a collection of stars and planets that are held together by gravity
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| solar system | a group of planets and other bodies that revolve around a star
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| revolution period | the movement of one object around a center or another object
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| asteroid | a large, irregularly shaped object in space that orbits our Sun
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| comet | a small, icy object that orbits the sun and has a long "tail" of gas
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| dwarf planet | Similar to the solar system’s eight planets but are smaller. Like planets, they are large, roundish objects that orbit the Sun but that are not moons
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| meteor | a space rock that hits the atmosphere of the Earth.
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| planet | a celestial body that revolves around a star
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| star | a celestial body of hot gases radiating energy
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| model | a representation of something (sometimes on a smaller scale)
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| proportion | the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree
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| scale | the ratio between the size of something and a representation of it
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| diameter | the length of a straight line passing through the center of a circle and connecting two points on the circumference
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| nuclear fusion | a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy
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| nuclear reaction | a process that alters the energy or structure or composition of atomic nuclei
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| sun | the star that is the source of light and heat for the planets in the solar system
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| gravitational force | the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
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| magnetic force | attraction for iron
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| electromagnetic | pertaining to or exhibiting magnetism produced by electric charge in motion
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| magnetic fields | the lines of force surrounding a permanent magnet or a moving charged particle
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| attraction | the force by which one object attracts another
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| gravity | the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
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| mass | the quality that gives things weight anywhere there's gravity
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| force | a physical energy that can be seen or felt
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| weight | the heaviness of a person or object
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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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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:
sbarone
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