SUN
What is the Sun?
Our main star.
How long does it take for the Moon to orbit the Earth?
About 28 days.
What is the shape of the Earth?
Geoid
What is the name of our system?
Solar System
How many planets are in the Solar System?
Eight.
What makes the Sun shine so bright?
The Sun shines because it produces energy inside its core.
What is the main theory that explains how the Moon was created?
The main theory is the Giant Impact Theory, which says that the Moon was formed after a planet called "Thea" hit Earth and then after millions of years, the aftermath came together to form the Moon.
What is Earth’s position in the Solar System?
The third planet from the sun
What force keeps planets orbiting the Sun?
Gravity
Which planet has the most moons in the Solar System?
Jupiter.
How far is Earth from the Sun?
Around 150.000.000 km.
What causes the phases of the Moon?
The changing position of the Moon, Earth, and Sun.
Why do we have day and night?
Because Earth rotates on its axis.
What is the difference between rocky planets and gas planets?
Rocky planets are made mostly of solid rock and have solid surfaces, while gas planets are made mostly of gases and do not have a solid surface.
Why does Mercury is full of craters, holes and mountains?
Without an atmosphere, meteoroids hit Mercury’s surface directly, creating many craters. Over billions of years, these impacts formed holes, craters, and mountains.
What is the process that happens inside the Sun that produces energy?
Nuclear fusion.
What are two things the Moon affects on Earth?
Moons causes high tide and low tide, and also, helps the Earth orbitates the Sun
Why does Earth have a magnetic field and why is it important?
Because of its molten metal core; it protects us from harmful solar radiation.
What are the names of the movements that Earth makes?
AND
How much time is needed?
Rotation and Revolution
24 hours and 365.5 days
Why can’t humans live on Venus? Mention at least two causes
Extreme heat, toxic atmosphere, crushing pressure.
Why can’t we see the Sun’s outer layers directly even though they exist (like the corona)?
Because most layers are extremely hot and the brightness blocks our view; we can only observe some parts during solar eclipses or using special instruments.
What is a lunar eclipse?
When Earth blocks sunlight from reaching the Moon.
Why are they important for sustaining life?
Both of them are responsible for protecting our planet form the Sun's radiation and providing a perfect environment for every creature
What is the difference between a galaxy and a solar system?
A galaxy is a huge collection of stars, solar systems, gas, and dust, while a solar system is just one star and the objects that orbit it.
Mention all the causes that make Venus hotter than Mercury and all other planets
A very thick atmosphere made mostly of carbon dioxide.
An extremely strong greenhouse effect, which traps heat and prevents it from escaping.
Thick clouds of sulfuric acid that hold even more heat inside the planet.