LESSON 1 TO 9

the sixth planet from the Sun and the second-largest planet in our solar system.

• jupiter

• neptune

• saturn

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It includes the Sun, the eight planets and their moons, the planetoids or the minor planets, the asteroids, meteoroids, comets, and the interstellar gases, dust, and ice.

• solar system

• galaxy

• universe

it is where our solar system is located.

• universe

• solar nebula

• milky way galaxy

He noticed that other galaxies were moving away from us.

• George Lemaitre

• Edwin Hubble

• Neil Armstrong

One of the Earth's subsystem which contains all rocks and minerals on Earth.

• geosphere

• biosphere

• hydrosphere

concentric layer of the Earth which consist of molten iron and nickel alloy.

• outer core

• inner core

• mantle

part of the crust which are found under land masses and made up of less dense rocks.

• oceanic crust

• crust's boundary

• continental crust

a croatian meteorologist-seismologist and the proponent of mohorovicic discontinuity.

• Andrija

• Inge

• Beno

molten rock that has reached the Earth's surface.

• crust

• lava

• magma

type of igneous rock formed due to solidification of lava.

• intrusive

• plutonic

• extrusive