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παρουσίαση αστρονομία.mp4

παρουσίαση αστρονομία.mp4

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Πολυξενη Ντουκα

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παρουσίαση αστρονομία.mp4

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Σχηματίζουμε τη γη φτιάχνοντας το παζλ με το jigsaw

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Σχηματίζουμε τη γη φτιάχνοντας το παζλ με το jigsaw

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Σχηματίζουμε τον πλανήτη Άρη με το jigsaw

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Σχηματίζουμε τον πλανήτη Άρη με το jigsaw

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Φωτογραφία επαυξημένης πραγματικότητας

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Φωτογραφία επαυξημένης πραγματικότητας

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Φωτογραφία επαυξημένης πραγματικότητας

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Φωτογραφία επαυξημένης πραγματικότητας

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ΟΙ φάσεις της σελήνης

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ΟΙ φάσεις της σελήνης

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Με το διαστημόπλοιο φτάσαμε στη σελήνη

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Με το διαστημόπλοιο φτάσαμε στη σελήνη

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Το ηλιακό ρολόι μας δείχνει την ώρα.

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Το ηλιακό ρολόι μας δείχνει την ώρα.

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Κατασκευή ηλιακό ρολόι.

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Κατασκευή ηλιακό ρολόι.

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Το ηλιακό μας σύστημα φτιαγμένο με πλαστελίνη

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Το ηλιακό μας σύστημα φτιαγμένο με πλαστελίνη

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Φτιάξαμε διαστημόπλοια

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Φτιάξαμε διαστημόπλοια

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Το ηλιακό σύστημα

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Το ηλιακό σύστημα

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A lot of moons or no moons at all?

We on Earth have just one moon, but some planets have dozens of them. Others don't have any. Which planets have moons, and which don't?

Let's go in order from the Sun.

Mercury and Venus

Up first are Mercury and Venus. Neither of them has a moon.

Because Mercury is so close to the Sun and its gravity, it wouldn't be able to hold on to its own moon. Any moon would most likely crash into Mercury or maybe go into orbit around the Sun and eventually get pulled into it.

Why Venus doesn't have a moon is a mystery for scientists to solve.

Earth (That's us!)

Up next is Earth, and of course we have one moon.

Mars

Mars has two moons. Their names are Phobos and Deimos. Don't you wish our moon had a cool name like that?

Jupiter

Next are the giant outer planets. They have lots of moons. Jupiter, for instance, has 79 known moons!

The most well-known of Jupiter's moons are Io (pronounced eye-oh), Europa, and Callisto. Jupiter also has the biggest moon in our solar system, Ganymede.

These moons are so big you can see them with just a pair of binoculars.

Saturn

Saturn has 53 moons that have been named. Saturn also has 29 moons awaiting confirmation. They're unconfirmed because we're waiting to get more information about them. If all of these moons get confirmed, Saturn will have 82 moons. And that's not counting Saturn's beautiful rings.

Saturn's moons have great names like Mimas, Enceladus, and Tethys. One of these moons, named Titan, even has its own atmosphere, which is very unusual for a moon.

Uranus and Neptune

Uranus has 27 moons that we know of. Some of them are half made of ice.

Lastly, Neptune has 14 named moons. One of Neptune's moons, Triton, is as big as dwarf planet Pluto.

To learn more about the moons in our solar system, visit the NASA Solar System Exploration moons page.

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We on Earth have just one moon, but some planets have dozens of them. Others don't have any. Which planets have moons, and which don't? Let's go in order from the Sun. Up first are Mercury and Venus. Neither of them has a moon.

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Play Solar System Switch-a-Roo!

Try to find Mars!
Something Something Something Solve another puzzle.
The planets and moons of our solar system come in a wondrous variety of colors and textures. Some appear white, smooth, and calm; others are splotchy with color and dotted with craters and volcanoes. If this is the variety to be found in our solar system, imagine the strange worlds that must exist around other stars!

In spite of how different they look, the Switch-a-Roo game might make you think the Sun, all the planets, and some of their moons were all the same size. Not true!
There are big planets and little planets, big moons and little moons.
Earth seems to us like a pretty big place. Well, Jupiter has 317 times more mass than Earth! Saturn is 95 times as massive as Earth. But even with those giants hogging all that mass, the Sun contains 99.86% of the mass of the entire solar system!

It's a wonder there's any matter at all left over for us!

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Put clues together to find the planets and moons.

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Overview The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet’s wobble on its axis, leading to a relatively stable climate. It also causes tides, creating a rhythm that has guided humans for thousands of years. The Moon was likel…

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Chances are that when you imagine the night sky, one of the first things that comes to mind is the Moon "glowing" in the darkness. The Moon has always held a special place in our imaginations and in daily life.

It's no wonder that we are fascinated. The Moon is Earth's only natural satellite and one that we can easily see most nights.

What makes the Moon glow?

The Moon does not shine with its own light. It simply reflects light coming from the Sun.

Why does it look like the Moon is changing shape?

From Earth, it might look like the Moon is changing shape each night - from a tiny sliver to a half moon to a full moon and back again. What's actually happening is that from our spot on Earth, we see different parts of the Moon lit up by the Sun as the Moon travels in its orbit.

Is there actually a "dark side" of the Moon?

No. The Moon rotates on its own axis at the same rate that it orbits around Earth. That means we always see the same side of the Moon from our position on Earth. The side we don't see gets just as much light, so a more accurate name for that part of the Moon is the "far side."

How did the Moon form?

Scientists believe that the Moon formed early in the solar system's history after Earth and an object about the size of Mars smashed into each other. The impact sent chunks of Earth and the impactor into space that were pulled together by gravity, creating the Moon.

How do we study the Moon?

Even thousands of years ago, humans drew pictures to track the changes of the Moon. Later, people used their observations of the Moon to create calendars.

Today, we study the Moon using telescopes and spacecraft. For example, NASA's Lunar Reconnaissance Orbiter has been circling the Moon and sending back measurements since 2009.

The Moon is the only other planetary body that humans have visited. On July 20, 1969, NASA astronauts Neil Armstrong and Buzz Aldrin were the first people to set foot on the dusty surface of the Moon. Ten other American astronauts followed. They collected hundreds of pounds of lunar soil and rock samples, conducted experiments and installed equipment for follow-up measurements.

What do we know about the Moon?

Today, we know that the Moon is covered by craters as well as dust and debris from comets, asteroids and meteoroid impacts. We know that the Moon's dark areas, called maria - which is Latin for seas - are not actually seas. Instead, they are craters that lava seeped into billions of years ago. We know that the Moon has almost no atmosphere and only about one-sixth of Earth's gravity. We even know that there is quite a bit of frozen water tucked away in craters near the Moon's poles.

There are still many questions left to answer about the Moon. And the most exciting days of lunar activity may still lie ahead as NASA sends humans on the next missions to the Moon and eventually on to Mars!

For more information visit:
NASA Solar System Exploration

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We have a slightly different view of the Moon each night. We describe how the Moon looks with the eight Moon phases, or shapes:

🌑 New

🌒 Waxing Crescent

🌓 First Quarter

🌔 Waxing Gibbous

🌕 Full

🌖 Waning Gibbous

🌗 Third Quarter

🌘 Waning Crescent

If you have looked into the night sky, you may have noticed the Moon appears to change shape each night. Some nights, the Moon might look like a narrow crescent. Other nights, the Moon might look like a bright circle. And on other nights, you might not be able to see the Moon at all. The different shapes of the Moon that we see at different times of the month are called the Moon's phases.

Why does this happen? The shape of the Moon isn't changing throughout the month. However, our view of the Moon does change.

The Moon does not produce its own light. There is only one source of light in our solar system, and that is the Sun. Without the Sun, our Moon would be completely dark. What you may have heard referred to as "moonlight" is actually just sunlight reflecting off of the Moon's surface.

The Sun's light comes from one direction, and it always illuminates, or lights up, one half of the Moon - the side of the Moon that is facing the Sun. The other side of the Moon is dark.

On Earth, our view of the illuminated part of the Moon changes each night, depending on where the Moon is in its orbit, or path, around Earth. When we have a full view of the completely illuminated side of the Moon, that phase is known as a full moon.

But following the night of each full moon, as the Moon orbits around Earth, we start to see less of the Moon lit by the Sun. Eventually, the Moon reaches a point in its orbit when we don't see any of the Moon illuminated. At that point, the far side of the Moon is facing the Sun. This phase is called a new moon. During the new moon, the side facing Earth is dark.

The eight Moon phases:

🌑 New: We cannot see the Moon when it is a new moon.

🌒 Waxing Crescent: In the Northern Hemisphere, we see the waxing crescent phase as a thin crescent of light on the right.

🌓 First Quarter: We see the first quarter phase as a half moon.

🌔 Waxing Gibbous: The waxing gibbous phase is between a half moon and full moon. Waxing means it is getting bigger.

🌕 Full: We can see the Moon completely illuminated during full moons.

🌖 Waning Gibbous: The waning gibbous phase is between a full moon and a half moon. Waning means it is getting smaller.

🌗 Third Quarter: We see the third quarter moon as a half moon, too. It is the opposite half as illuminated in the first quarter moon.

🌘 Waning Crescent: In the Northern Hemisphere, we see the waning crescent phase as a thin crescent of light on the left.

The Moon displays these eight phases one after the other as it moves through its cycle each month. It takes about 27.3 days for the Moon to orbit Earth. However, because of how sunlight hits the Moon, it takes about 29.5 days to go from one new moon to the next new moon.

Here's what the Moon looks like right now from Earth:

Interested in learning more about the Moon?

Related Resources for Educators

Daily Moon Guide
Moon Phases Simulation Viewed from Earth and Space
Our World: Moon Phases
Make a Moon Phase Calendar and Calculator

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ενώνω τις όμοιες λέξεις

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Ενώνω τις όμοιες λέξεις worksheet

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Language online worksheet for preschool. You can do the exercises online or download the worksheet as pdf.

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πλανήτες και σκιές

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εργαστήρια δεξιοτήτων

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Πλανήτες και σκιές worksheet

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Πλανήτες online worksheet for Εργαστήρια Δεξιοτήτων. You can do the exercises online or download the worksheet as pdf.

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ένωσε τους πλανήτες με την σκιά τους

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εργαστήρια δεξιοτήτων

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Ένωσε τους πλανήτες με την σκιά τους worksheet

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Πλανήτες online worksheet for Νηπιαγωγείο. You can do the exercises online or download the worksheet as pdf.

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Wordwall - Δημιουργήστε καλύτερα μαθήματα γρηγορότερα

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Drag and drop the pins to their correct place on the image.. ΗΛΙΟΣ, ΓΗ, ΔΙΑΣ, ΚΡΟΝΟΣ, ΠΟΣΕΙΔΩΝΑΣ, ΟΥΡΑΝΟΣ, ΑΡΗΣ, ΑΦΡΟΔΙΤΗ, ΕΡΜΗΣ, ΣΕΛΗΝΗ.

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Wordwall - Δημιουργήστε καλύτερα μαθήματα γρηγορότερα

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Tap a pair of tiles at a time to reveal if they are a match.. Άρης, Αφροδίτη, Πλούτωνας, Ποσειδώνας, Κρόνος, Γη, Ερμής, Ουρανός, Δίας.

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Wordwall - Δημιουργήστε καλύτερα μαθήματα γρηγορότερα

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1) Ονομάζεται και Λευκός Νάνος a) Ερμής b) Αφροδίτη c) Πλούτωνας 2) Πόσοι είναι οι πλανήτες; a) 6 b) 8 c) 10 3) Έχει πάρει το όνομά του από τον θεότου πολέμου, των αρχαίων Ελλήνων. a) Αφροδίτη b) Άρης c) Δίας 4) Πως λέγεται το σύστημα ουράνιων σωμάτων, στο οποίο ανήκει και η Γη και έχει τον ήλιο για κέντρο του; a) Πλανητικό σύστημα b) Ηλιακό σύστημα c) Διαστημικό σύστημα 5) Ονομάζεται και Γίγαντας του ηλιακού συστήματος a) Ποσειδώνας b) Δίας c) Κρόνος 6) Πήρε το όνομά του από την θεά της ομορφιάς a) Αφροδίτη b) Γη c) Ηλιος 7) Έχει δαχτυλίδια στην μέση του. a) Κρόνος b) Δίας c) Ποσειδώνας d) Ερμής 8) Είναι ο μόνος πλανήτης που έχει ζωή. a) Αφροδίτη b) Άρης c) Ερμής d) Γη 9) Ονομάζεται και Αυγερινός και Αποσπερίτης γιατί εμφανίζεται στον ουρανό νωρίς το βράδυ και χάνεται τελευταίο την Αυγή. a) Αφροδίτη b) Άρης c) Δίας d) Κρόνος 10) Είναι ο πλανήτης που βρίσκεται πιο κοντά στον ήλιο a) Άρης b) Πλούτωνας c) Ερμής 11) Σε ποιά θέση βρίσκεται η Γη σε σχέση με την απόστασή της από τον ήλιο; a) 1η b) 2η c) 3η d) 4η 12) έχει πάρει το όνομά του από τον θεό της θάλασσας a) Ποσειδώνας b) Ουρανός c) Δίας 13) Ποιός είναι το κέντρο του ηλιακού μας συστήματος; a) Δίας b) Γη c) Ήλιος

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Κουίζ- Πλανήτες

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1) Ονομάζεται και Λευκός Νάνος a) Ερμής b) Αφροδίτη c) Πλούτωνας 2) Πόσοι είναι οι πλανήτες; a) 6 b) 8 c) 10 3) Έχει πάρει το όνομά του από τον θεότου πολέμου, των αρχαίων Ελλήνων.

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Στης κυρίας Κλεονίκης!!!

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Ο Φεγγαροσκεπαστής - Αφήγηση

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Earth's Tilt and the Seasons - for Planetarium Show

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Η Σελήνη μας!

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Planetarium On The Go - Φορητό Ψηφιακό Πλανητάριο

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Εικονικό Πλανητάριο VR 360 - Άρης, Ο Κόκκινος Πλανήτης

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Planetarium On The Go - Φορητό Ψηφιακό Πλανητάριο

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Εικονικό Πλανητάριο VR 360 - Από τη Γη στο Σύμπαν (Μέρος 1ο - Το Ηλιακό Σύστημα)

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Η Γη Στο Σύμπαν - Ντοκιμαντέρ 360 VR

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Ψηφιακή Τάξη

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Ο άξονας και  η περιστροφή της Γης - Ημέρα & Νύχτα

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Wordwall - Create better lessons quicker

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Match up - Drag and drop each keyword next to its definition.

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η αγκαλιά της μαμάς

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Η Μυγδαλιά και το Φεγγάρι

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"Το Φεγγάρι και ο Φίλος του" (Παραμύθι + Οι Φάσεις του Φεγγαριού + Βιβλικό Μήνυμα)

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"Το Φεγγάρι και ο Φίλος του" (Παραμύθι + Οι Φάσεις του Φεγγαριού + Βιβλικό Μήνυμα)

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Ο Ήλιος και το Φεγγάρι παραμυθι

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Αντωνία Πεγίδου

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Ο παράξενος έρωτας του ήλιου και του φεγγαριού Βίντεο Πεγίδου Αντωνία

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Αντωνία Πεγίδου

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Νύχτα με φεγγάρι σύνταξη βίντεο Πεγίδου Αντωνία

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Παραμυθόσαυρος - Παραμύθια για παιδιά

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Ένα γλυκό ταξίδι στο διάστημα / Προσωποποιημένα παραμύθια by Παραμυθόσαυρος

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Ο ΑΣΤΡΟΝΑΥΤΗΣ

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Όταν το φεγγάρι

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Οι πλανήτες / Μαθαίνω για τους πλανήτες τραγουδώντας / τραγούδι για τους πλανήτες

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Μια γιορτή στη γειτονιά του Ήλιου - Χάρης Κατσιμίχας

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Αντωνία Πεγίδου

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ΗΛΙΑΚΟ ΣΥΣΤΗΜΑ ΠΛΑΝΗΤΕΣ Βίντεο Πεγίδου Αντωνία

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Η Γη και οι πλανήτες μας | Παιδικά Τραγούδια | Koperti

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Μια γιορτή στη γειτονιά του Ήλιου - Χάρης Κατσιμίχας

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Φάσεις της σελήνης

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Ηλιακό σύστημα / Διάστημα  μέρος 1ο - Εκπαιδευτικό βίντεο picou picou

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Μαθαίνω το Ηλιακό Σύστημα και τους Πλανήτες (Μέρος ΙΙ) - The Solar System

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Η Γη και οι πλανήτες μας | Παιδικά Τραγούδια | Koperti

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Μέρα, νύχτα - Eκπαιδευτικό video picou picou

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Μαθαίνω το Ηλιακό Σύστημα - Οι Πλανήτες

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ΔΙΑΣΤΗΜΑ & ΠΛΑΝΗΤΕΣ - 12 Απριλίου: Ημέρα πτήσης του ανθρώπου στο διάστημα -Παιδικό Βίντεο

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Ήχοι από τους πλανήτες

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ΤΟ ΗΛΙΑΚΟ ΜΑΣ ΣΥΣΤΗΜΑ - ΟΙ ΟΚΤΩ ΠΛΑΝΗΤΕΣ - ΟΙ ΤΡΟΧΙΕΣ ΤΩΝ ΠΛΑΝΗΤΩΝ (HD)

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Στη γειτονιά του ήλιου

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National Geographic | Επιστήμη 101 | To Ηλιακό Σύστημα

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Our solar system can be divided into three regions: the inner solar system, the outer solar system, and the Kuiper Belt and Oort Cloud. The inner, rocky planets are Mercury, Venus, Earth, and Mars. These worlds also are known as terrestrial planets because they have solid surfaces. Mercury, Earth, a…

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Overview The Sun's gravity holds the solar system together, keeping everything - from the biggest planets to the smallest particles of debris - in its orbit. The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts and auroras.

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Articles, games and activities about our planetary neighbors

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Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface.

Our atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe. The atmosphere also protects us from incoming meteoroids, most of which break up in our atmosphere before they can strike the surface as meteorites.

Since we live here, you might think we know all there is to know about Earth. Not at all, actually! We have a lot we can learn about our home planet. Right now, there are many satellites orbiting Earth taking pictures and measurements. This is how we can learn more about weather, oceans, soil, climate change, and many other important topics.

Structure and Surface

Earth is a terrestrial planet. It is small and rocky.

Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It's the only planet in our solar system we know of that supports life. It is mostly nitrogen, and it has plenty of oxygen for us to breathe.

Time on Earth

A day on Earth lasts a little under 24 hours.

One year on Earth lasts 365.25 days. That 0.25 extra means every four years we need to add one day to our calendar. We call it a leap day (in a leap year).

Earth's Neighbors

Earth has just one Moon. It is the only planet to have just one moon.

Earth has lots of spacecraft watching it. There is still a lot we can learn about our home planet.

Earth is the third planet from the Sun in our solar system. That means Venus and Mars are Earth's neighboring planets.

Quick History

We have known about our planet since ancient times, of course. But we didn't know our place in the solar system for a long time.

What does Earth look like?

For more information visit:
NASA Solar System Exploration

Related Resources for Educators

Real World: A-Train
Our World: A-Train
Real World: Earth Systems

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Earth's Tilt and the Seasons - for Planetarium Show

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Πέπα το γουρουνάκι - Ταξίδι στη Σελήνη