The time it takes for the moon to revolve once around the Earth.
What is 27.32 days?
The third planet from the sun.
What is Earth?
The four main subsystems of Earth are sometimes called...
What are spheres?
The areas that separate each layer of the geosphere.
What are discontinuities?
Some minerals have crystals with recognisable shapes.
What is crystal habit?
The different portions of the Moon that we see.
What are the phases of the Moon?
The star at the centre of the solar system, formed 4600 million years ago.
What is the Sun?
The gaseous layer of Earth.
What is the Atmosphere?
The thin layer of the geosphere which covers the surface of the Earth.
What is the crust?
The colour of the dust produced by crushing a mineral.
What is streak
The moon gets in between the Earth and the Sun.
What is a solar eclipse?
The only planet in our Solar System with water in all its three states.
What is Earth?
The layer of Earth that contains water in three states: liquid, gas and solid.
What is the Hydrosphere?
The layer of the geosphere made of peridotite (a type of rock).
What is the mantle?
A minerals resistance to scratching.
What is hardness?
The Earth gets in between the Sun and the Moon.
What is a lunar eclipse?
The circles of materials that surrounded the Sun.
What are Swirls?
The solid part of the Earth.
What is the Geosphere?
The centre layer of the geosphere mostly made of iron.
What is the core?
The way each mineral reflects light.
What is lustre?
They occur as a result of the gravitational pull of the Moon. (hint: sea levels)
What are tides?
Larger celestial bodies formed by materials colliding.
What are planetesimals?
The layer of the Earth where life occurs.
What is the Biosphere?
Rock that has been made liquid by extreme heat. Mostly found in the outer core.
What is Molten?
The way a mineral breaks (e.g. smooth, irregular, cubes and sheets).
Cleavage