My mom seems to love doing core workouts. I am not sure why, but I’m going to do them anyway. Join me:
There is a saying practice makes perfect. I think we will all be perfect at multiplication by the end of this week:
The Moon is Earth’s natural satellite. That’s a huge rock that goes around our planet. It’s relatively pretty big – over quarter of the size of Earth. Because it’s so large, Earth and Moon are sometimes called a binary system. It takes the moon 28 days to travel once around Earth – and that’s basis for what they used to call a month (it changed a bit when the Romans created Julian calendar and divided year into 12 months).
I know that we can see the Moon from Earth and it’s easy to think that it shines. The Moon doesn’t create the light on its own though. It reflects Sun’s light. That is actually why we have phases of the Moon – that’s you can see different shapes.
The Moon has a hard, rocky surface, which means you can walk on it. There is no atmosphere though, so the temperatures change a lot and you need a special suit to protect your body. People actually have walked on the Moon. The first person to do it was Neil Armstrong and he did it in 1969.
The fact that the Moon is so large relative to Earth is very important to things that happen on our planet. One thing you probably have seen that the Moon causes are tides. The Moon pulls on water on Earth, making is move in its direction a bit. So when one shore is closer to the Moon, the water flows towards it, causing high tide – that’s when water goes higher on the beach. When Moon is on the other side of Earth, it pulls water away, causing low tide.
Social Science 👩🎓
He was a German mathematician and astronomer who lived between 1571 and 1630. He was Tycho Brahe’s student and assistant. He learned a lot about the first telescope and created refracting telescopes, knows also as Keplerian telescopes. His telescopes were used by Galileo in his work (more on that tomorrow).
His greatest work was on planetary motions. That’s how planets (and their moons) move and why. This research helped Isaac Newton come up with theory of gravity. He studied both theories of how the Solar System is built. He decided that Copernicus was right.
Like his teacher, Kepler was an astrologer and used to tell the future based on his observations of the sky (it’s all made-up, but some people still believe that and read their horoscopes).
The Wright brothers are famous because they flew the first powered aircraft (that’s a simpler airplane).
Word of the Day ❗
Utter – without qualification.
Learn more about Moon landing from National Geographic Kids: