Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Study Guide HPA scie
Sun-Earth-Moon System
| Question | Answer |
|---|---|
| why do we experience day and night? | The earths rotation on its axis it takes 24 hours to rotate one time through day and night half the time a point on Earth receives sun rays (day) and the other half does not (night) |
| Rotation | the act of the earth turning on its axis |
| Revolution | the act of Earth orbiting around the sun |
| Moons revolution and rotation | 27.3 days |
| Size/ distance of the moon | Earth across .27 (3500km) Earth away 30 (384,000) |
| Size/Distance of the Earth | Earth across 1 (12,756) Earth away 0 |
| Size/Distance of the Sun | Earth across 109 (1,392,000) Earth away about 12,000 (150,000,000) |
| Why can the moon appear as large as the sun even though we know the moon is much smaller than the sun? | the sun is 400 times larger than the diameter of the moon and the sun is also 400 times further away from the Earth. |
| Why do shadows change during the day | The sun changes during the day because the suns rays of heat hits the Earth at different angles |
| Explain why shadows lengths change throughout the year | Because the sun gets closer and further away from the Earth because of the Earths tilt towards or away from the sun. |
| What causes seasons | It is Earths atmosphere and the tilt of its axis |
| What factors affect how hot or cold it is in any one place on Earth? | The thickness of the Earths atmosphere, the angle of the sun moving across the sky, elevation on Earth |
| How much of the moon always receives light from the sun | Half of the moon is illuminated because its always facing the sun |
Created by:
Juliette3
Popular Physical Science sets