From our own planet Earth to galaxies far, far away, the STAR LAWS series brings the whole universe into focus and makes astronomy clear, engaging, and fun!
The word astronomy comes from the Greek words astron which means star and nomos which means law. Astron nomy therefore translates literally as STAR LAWS. Astronomy is the study of the laws of nature that govern how stars and other bodies in space appear to move across the sky, how they form, and how they change over time.
All of our videos come with worksheets. Just visit each individual page to download them. You will also find a transcript of each video that students can use as a kind of text book.
STAR LAWS EPISODE…
I: What Causes Day and Night?
II: What is a Year?
III: Why do we have Seasons?
Episode I: What Causes Day and Night?
Why do we have day and night?
Why is a day 24 hours long?
Why does the sun always rise in the eastern sky and set in the western sky?
What path does the sun take as it moves across the sky?
Why are tennis courts and other sporting facilities nearly always aligned in a north-south direction?
Episode II: What is a Year?
What is a year?
How big is the Sun compared to the Earth?
How far away is the Earth from the Sun?
What is a leap year?
How fast does the Earth travel around the Sun?
Why are our years numbered the way that they are?
What do AD and BC mean?
What do CE and BCE mean?
Episode III: Why do we have Seasons?
Why do we have seasons?
Why is it the case that when it’s summer in the Northern Hemisphere, it’s winter in the Southern Hemisphere (and vice versa)?
What time of year does the Southern Hemisphere get its longest days?
Where are the Tropics and why is it always hot there?
Why is it always cold at the North Pole and at the South Pole?
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Episode IV: What is your Latitude and Longitude?
Where on Earth are you?
How do astronomers and others express exactly where everything is on Earth?
Why is knowing your latitude and longitude co-ordinates so important?
Episode V: How Does GPS Work?
How do GPS location services work?
Why is it impossible to draw maps of the world without any kind of distortion?
How do we draw flat maps of a spherical Earth?
How do our phones work out their latitude and longitude?
Episode VI: Where is the Sun Right Now?
What is the subsolar point?
How and why does it change throughout the year?
Why is the subsolar point always between the Tropic of Cancer and the Tropic of Capricorn?
How fast does the subsolar move?
Episode VII: Why are Summer Days Longer than Winter Days?
Why are summer days longer than winter days?
What is the difference in daylength between summer days and winter days?
Is this difference the same everywhere on Earth?
When do we get our longest day?
When do we get our shortest day?
How long is an average day?
Episode VIII: Why does the Sun get higher in the Sky in Summer than it does in Winter?
Why does the Sun get higher in the sky in summer than it does in winter?
What angles are we actually talking about?
Do the angles change in different locations?
Episode IX: How Does the Sun’s Path Across the Sky Change Throughout the Year?
In which direction does the Sun rise every morning?
In which direction does the Sun set every evening?
What path does the Sun follow during the day?
How does the Sun’s path change throughout the year?
Does your location change the way that the Sun appears to move across the sky?
How does the Sun’s path affect the renewable energy industry and the growth of plants?
Episode X: What is the Sun’s AZIMUTH and ALTITUDE Right Now?
What do azimuth and altitude mean?
How does the Sun’s azimuth change throughout the day?
How does the Sun’s altitude change throughout the day?
Why do the hands on clocks turn clockwise?