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Ready to peek inside an ordinary-looking rock? Your inside knowledge of gems and minerals becomes crystal clear with this sparkling geode project.
During an investigation into type of rocks and minerals, invite students to learn about beautiful crystal formations called geodes. Found in hollow spaces of mineral deposits that look like ordinary rocks on the outside, these unique rocks contain crystals that form over a long period of time. Why do these form? How are they like other rocks? How are they different? Students find pictures of these beautiful natural formations. If possible look at them in a museum.
Once research is complete, and has been discussed as a class, invite students to create their own geode replica. Studnets can use Crayola® Model Magic® to create an outer stone nodule for their crystals. Form white Model Magic into a thick, bowl-shaped pinch pot. Use a Crayola Washable Marker cap to create a textured outer surface on geodes.
Roll out a Model Magic snake. Use Crayola Scissors to cut the snake into several short sections. Cut a point onto one end of each section, making four small angled cuts. These will become the crystals. Attach the blunt end of the pointed crystals to the inside of the geode. Fill the entire geode with these Model Magic crystals. Air-dry at least 24 hours.
Students cover their work space with recycled newspaper. Use Crayola Washable Watercolors to paint the outside of geodes. Use a brush with stiff bristles to spatter a variety of colors on it.
Paint the crystals inside the geode a light, pastel color by diluting the paint with water. Air-dry the geode.
Use Crayola Glitter Glue to make crystals glitter realistically! Air-dry before displaying the geode collection.
Working in small groups, students present their original geode model and share their most interesting facts retrieved during the research process.
People around the world give thanks for their food. Celebrate a harvest of pineapples, pumpkins, or pomegranates-and sho
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