Sciences bits

The Earth’s outermost layer is: Crust. Mantle. Core.

It is made up of rocks and minerals and is thus solid: Crust. Mantle. Core.

It is the largest layer: Crust. Mantle. Core.

What is it the volumen of the mantle?. 82%. 85%. 80%. 84%.

It is composed of magma and solid rocks: Crust. Mantle. Core.

It is made of dense materials: Crust. Mantle. Core.

The outer layer of the core is: Liquid. Solid. Gas. All of them are right.

The inner layer of the core is: Liquid. Solid. Gas. All of them are right.

A mineral is homogeneous because: All the parts of the mineral have the same properties. All the parts of the mineral have different properties. Some parts of the mineral have different properties. Some parts of the mineral have the same properties.

A mineral has to be solid: True. False.

Are related to the behavior of minerals in the presence of light: Optical properties. Mechanical properties. Physical properties. Chemical properties.

Are related to the responses of the minerals when certain forces are exerted on them: Optical properties. Mechanical properties. Physical properties. Chemical properties.

Are related to both the relationship between the mineral’s mass and the volumen it occupies, and to its electromagnetic qualities: Optical properties. Mechanical properties. Physical properties. Chemical properties.

Are related to the way that different minerals respond when they come in contact with other substances: Optical properties. Mechanical properties. Physical properties. Chemical properties.

This property indicates how much the Surface of a mineral can reflect light. Luster. Transparency. Birefringence. Fluorescence.

The ability of a mineral to let light through it: Luster. Transparency. Birefringence. Fluorescence.

The property of splitting a ray of light into two rays as it passes through: Luster. Transparency. Birefringence. Fluorescence.

The property in which light is given off upon exposure to ultraviolet light: Luster. Transparency. Birefringence. Fluorescence.

The resistance of a mineral to scratching: Hardness. Brittleness. Plasticity. Elasticity.

The ability of a mineral to break without deforming significantly: Hardness. Brittleness. Plasticity. Elasticity.

The ability of a material to be molded into other shapes without breaking when a force is exerted on it: Hardness. Brittleness. Plasticity. Elasticity.

The ability to deform without breaking but it recovers its original shape when the force stops: Hardness. Brittleness. Plasticity. Elasticity.

The ability to break into regularly-shaped fragments: Hardness. Brittleness. Cleavage. Fracture.

The ability to behave like a magnet: Magnetism. Electrical conductivity. Density. Fracture.

The ability to conduct electric current: Magnetism. Electrical conductivity. Density. Fracture.

The amount of mass in each unit volumen of that mineral: Magnetism. Electrical conductivity. Density. Fracture.

The ability to dissolve in water and produce a homogeneous mixture: Reactivity with acids. Solubility. Fracture. Cleavage.

The rocks formed by internal geological process are: Igneous rocks. Metamorphic rocks. Sedimentary rocks. Igneous and metamorphic rocks.

The rocks formed by external geological process are: Igneous rocks. Metamorphic rocks. Sedimentary rocks. Igneous and metamorphic rocks.

When the igneous, sedimentary and metamorphic rocks melt, they become: Magma. Sediments. Both of them. None of them.

When igneous rocks suffer heat and preassure they become: Metamorphic rocks. Sedimentary rocks. Magma. None of them.

Choose the right answers: Water is not vital to living organism. Water is involved in regulating the Earth’s global climate. Water plays a role in shaping the contours of the Earth’s crust. Water is not an outstanding solvent. It is easy to heat and cool the water. Water can change its state. Water is less dense than ice.

The change from solid to liquid is called: Melting. Vaporization. Sublimation. Reverse sublimation.

The change from liquid to gas is called: Melting. Vaporization. Sublimation. Reverse sublimation.

The change from gas to solid is called: Melting. Vaporization. Sublimation. Reverse sublimation.

The change from solid to gas is called: Melting. Vaporization. Sublimation. Reverse sublimation.

The change from liquid to solid is called: Condensation. Solidification. Sublimation. Reverse sublimation.

The change from gas to liquid is called: Condensation. Solidification. Sublimation. Reverse sublimation.

In the water cycle, when does the vapor rise up and form clouds?. Condensation. Precipitation. Evaporation. Circulation.

In the water cycle, when do the tiny droplets fallo ut of the sky?. Condensation. Precipitation. Evaporation. Circulation.

In the water cycle, when does the Sun heat the water and evaporate it into the atmosphere?. Condensation. Precipitation. Evaporation. Circulation.

In the water cycle, when does the water becomes rich in all sorts of substances?. Condensation. Precipitation. Evaporation. Circulation.

In the water cycle, when does the water move back towards the ocean?. Condensation. Precipitation. Evaporation. Circulation.

In the water cycle, when could be formed an aquifer?. Condensation. Precipitation. Infiltration. Transpiration.

In the water cycle, when does the precipitation infiltrate into the pores of rocks in the crust?. Condensation. Precipitation. Infiltration. Transpiration.

In the water cycle, when is formed the 10% of the vapor that goes to the atmosphere?. Condensation. Precipitation. Infiltration. Transpiration.

The Earth is surrounded by an envelope of gases and particles called: Atmosphere. Geosphere. Exosphere. Mesosphere.

The Earth’s atmosphere formed: 4,5 billion years ago. 4,5 million years ago. 4 billion years ago. 4 million years ago.

Earth is the only celestial body with an atmosphere: True. False.

The mixture of gases and suspended particles is called: Air. Water. Ozone. Carbon dioxide.

The components of the Atmosphere are: Atmospheric gases and minor gases. Atmospheric gases. Minor gases. Carbon dioxide and ozone.

Spiraling wind that forms around centers of low pressure. Cyclone. Anticyclone. Air mass.

Spiraling wind that forms around centers of high pressure. Cyclone. Air mass. Anticyclone.

Large of body of air that is in direct contact with the Earth's surface: Air mass. Cyclone. Anticyclone.

The outermost layer of the atmosphere is: Exosphere. Thermosphere. Mesosphere. Stratosphere.

Between exosphere and thermosphere it is: Thermopause. Mesopause. Exopause. Tropopause.

The layer between the mesopause and the thermopause is called: Thermosphere. Stratosphere. Thermopause. Stratopause.

It is at an altitude of 600km: Thermosphere. Mesosphere. Stratosphere. Exosphere.

It is between the stratopause and the mesopause: Mesosphere. Stratosphere. Troposphere. Thermosphere.

It is at an altitude of 80km. Thermosphere. Mesosphere. Stratosphere. Troposphere.

It is between the tropopause and the stratopause: Troposphere. Stratosphere. Mesosphere. Exosphere.

It is at an altitude of 12 km: Stratosphere. Exosphere. Mesosphere. Troposphere.

It contains about 19% of the air. Stratosphere. Troposphere. Exosphere. Mesosphere.

It is the thinnest and densest layer: Troposphere. Stratosphere. Mesosphere. Exosphere.

It contains about 80% of the atmosphere's mass: Troposphere. Exosphere. Stratosphere. Mesosphere.

Sorts the layers of the atmosphere from the outermost to the innermost. Exosphere. Thermopause. Thermosphere. Mesopause. Mesosphere. Stratopause. Stratosphere. Tropopause. Troposphere.