When magma - molten rock - solidifies, it does form an igneous rock.
a molten rock
That is correct.
Rocks formed from hot molten rock that has coold and hardened are called what?
That is correct.
yes
volcanic rocks
From lava that came from volcanoes. They harden to form igneous rocks.
rock is melted to form molten rock, then as the lava hardens, it forms any type of igneous rock
large
When molten material from beneath the Earth's surface cools but doesn't harden, it forms a type of rock called volcanic glass, or obsidian. Obsidian is a black, glassy rock formed from rapidly cooled lava, which prevents the growth of mineral crystals typically found in other types of rock.
The rocks were similar to rocks formed by volcanoes on Earth, suggesting that vast oceans of molten lava once covered the moon's surface.
Molten rock is magma. It is called lava once it has cooled and hardened.