2. Earth and Space Science- Orbits, Years, Days and Nights (2024) (1).pptx

Earth and Space Unit

1. Earth and Space Science Orbits and Years Adapted from Stileapp.com

2. Orbits and Years Success Criteria: Describe what orbits and years are Compare how long it takes different plants to orbit the sun

3. Orbits and Years Orbits The curved paths that planets follow around the Sun are called  orbits . Remember: The force that holds an object in orbit is  gravity .  The more massive an object is, the stronger its gravitational pull.

4. Orbits and Years Orbits The Sun causes all the other objects in the Solar System to orbit around it. Why do you think so? The Earth's gravitational pull keeps the Moon in orbit around it. And Saturn's gravitational pull keeps fragments of ice, rock and dust in orbit to form its famous rings.

5. Orbits and Years What other things may be in orbit??

6. Orbits and Years Satellite Any object that orbits another object. There are two types of satellite in space: natural satellites (Earth and Moon) artificial satellites (thousands of man-made satellites that travel in orbit around the Earth)

7. Orbits and Years Virtual Reality- International space station: bit.ly/ iss-vr

8. Orbits and Years Year The time taken for a planet to orbit once around the Sun. The Earth's journey takes 365 days DID YOU KNOW? Planets take different lengths of time to complete one orbit around the Sun. This is because the planets are all different distances from the Sun and move at different speeds. Mercury takes only 88 days to orbit the Sun. Neptune takes about 60,182 days – the equivalent of 164 years on Earth! 

9. Orbits and Years – Calculating your age on other planets! Your age is the number of times you've travelled around the Sun since the day you were born. To calculate your age on another planet: Calculate your age in days. To do this, multiply your age in years by 365, the number of days in a year on Earth. Divide your age in days by the length of one year on the other planet.

10. Earth and Space Science Day and Night Adapted from Stileapp.com

11. Day and Night Success Criteria: Explain what causes day and night

12. Day and Night The International Space Station orbits Earth roughly every 90 minutes. It completes 16 orbits in a 24 hour day on Earth. This means that astronauts in the space station see 16 sunrises and sunsets every day! See the sunset and sunrise from the ISS!! https://www.youtube.com/watch?v=ZnhKSZMHnQk

13. Day and Night The Earth spins/rotates. Imagine a line that runs through the Earth from the North Pole to the South Pole. This line is called an  axis .   The Earth rotates on its axis from west to east.

14. Day and Night The rotation of the Earth is what causes the change between day and night.  One full rotation on the planets axis is one day . Rotation of the Earth causes the sun to rise, cross the sky, and set.