Observing the SKy
Help!
|
|
||||
|---|---|---|---|---|---|
| astronomy | the study of all physical objects beyond Earth
🗑
|
||||
| calendar | a system for organizing time; most calendars organixe time within a single unit called a year
🗑
|
||||
| year | the time required for the Earth to orbit the sun once
🗑
|
||||
| month | roughly the amount of time required for the moon to orbit the Earth once
🗑
|
||||
| day | the time required for the Earth to rotate once on its axis
🗑
|
||||
| leap year | a year in which an extra day is added to the calendar
🗑
|
||||
| constellation | a section of the sky that contains a recognizable star pattern
🗑
|
||||
| altitude | the angle between an object in the sky and the horizon
🗑
|
||||
| right ascension | a measure of how far east an object is form the point at which the sun appears on the first day of spring
🗑
|
||||
| declination | a measure of how far north or south an object is from the celestial equator
🗑
|
||||
| celestial equator | imaginary circle created by extending Earth's equator into space
🗑
|
||||
| ecliptic | the apparent path the sun takes across the celestial sphere each year
🗑
|
||||
| light year | a unit of length equal to the distance that light travels through space in 1 year
🗑
|
||||
| telescope | an instrument that collects electromagnetic radiation from the sky and concentrates it for better observation
🗑
|
||||
| refracting telescope | a telscope that uses a set of lenses to gather and focus light
🗑
|
||||
| reflecting telescope | a telescope that uses curved mirrors to gather and focus light
🗑
|
||||
| electromagnetic spectrum | all the wavelengths of electromagnetic radiation
🗑
|
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.
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.
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
mfender
Popular Earth Science sets