26.1

These are dark spots on the photosphere

• solar winds

• sun spots

• solar flares

• magnetic spots

Colorful displays of light appearing the Earth's upper atmosphere caused by solar winds entering the Earth's magnetic field.

• solar winds

• sun spots

• auroras

• magnetic spots

Model of the universe that has the Sun in the center.

• geocentric model

• heliocentric model

• Ptolemy model

• constellation model

Using the Mohs Hardness Scale above answer the following questions as true or false.

1. _____ Apatite would scratch fluorite but not topaz.

• True

• False

Which factor determines the crystal shape and the properties of a mineral?

• arrangement of atoms

• presence of impurities

• reflection of light

Tags

NGSS.MS-PS1-1

How do minerals form from magma or lava?

• When the magma or lava is hot the pressure from earth's surface creates crystals

• The particles inside the magma or lava dissolve and create crystals

• As the magma or lava cools down or hardens to a solid state it creates crystals

Which type of rock is formed from the solidification of magma or lava?

• igneous

• sedimentary

• metamorphic

• bioclastic

Tags

NGSS.MS-ESS2-1

The size of crystals in Igneous Rocks depends upon

• pressure

• the presence of air

• the presence of water

• cooling rate

Extrusive rocks are formed

• underwater

• in a lab

• deep underground

• above the surface of a volcano

Which characteristics could help you identify an igneous rock as cooling on the surface?

• Vesicles (air bubbles) and large crystals

• Vesicles (air bubbles) and very small or no crystals

• Large crystals and multi-colored

• Being dark or light in color and having layers