Third Grade - Rocks and Minerals Crossword Puzzle

QUESTIONS LIST:

• hardness : how easily a mineral can be scratched
• streak : the color of the powder left when a mineral is rubbed on a white tile
• magma : melted rock deep inside the earth
• luster : how shiny or dull a mineral is
• metamorphic : rock that has been changed by heating and squeezing
• minerals : solid nonliving substances found in nature
• rock : nonliving material made of one or more minerals
• sedimentary : rock that forms from layers of sediment that pile up
• sediment : tiny bits of weathered rock or once living animals or plants
• lava : melted rock that flows onto earth's surface
• igneous : rock that forms when melted rock cools and hardens
• geologist : person who studies rocks and minerals
• color : most minerals are only one _
• geology : study of rocks and minerals