Year+8+Podcasts



Here you will find podcasts from Mr. Leslie's Class answering the following important questions:

=Topic: Earth Moon and Sun=

__**Questions:**__ Why is there day and night? How long does the earth take to spin on its own axis? Why are there seasons? What is an axis and what angle is the earth's axis, in comparison to the sun? Why is there seasons? Why are there leap years? How long does the earth take to revolve around the sun? What is this called?
 * Lesson 1 podcast - Seasons, day and night**

Why does the moon shine? What is a phase? Why does the moon change it’s shape? Why do we only see one side of the moon? Why does the moon rise and set at different times each day? Why does it take 29.5 days for a full cycle of the moon even though the moon revolves around the earth once every 27 1/3 days?
 * Lesson 2 podcast - Moon Phases**

What causes a SOLAR eclipse? What phase must the moon be in during a solar eclipse? Explain the difference between a partial eclipse and a total eclipse. What causes a Lunar Eclipse? Why do Lunar eclipses last longer than solar eclipses? What is the corona? What safety precautions should be observed during a SOLAR eclipse?
 * Lesson 3 Podcast - Eclipses**

Why is the moons gravitational pull on Earth stronger than the Suns? Why is there two high tides and two low tides each day even though the moon only revolves around the Earth once daily from our perspective? What causes the tides? When does the largest tide occur? Explain the difference between a spring and a neap tide. What is causing the earths rotation on its axis to slow down? What will this mean for Earth in the long run?
 * Lesson 4 Podcast - Tides**

What is a black hole? Why is it called a black hole? How are they formed? Is there evidence that black holes exist? If so what is it? What would happen if a person was to fly into a black hole in a spaceship?
 * Lesson 5 Podcast - Black holes**