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- K2- Fall Exploration
- K2- Float or Sink?
- K2 Boats
- boat images
- G1 Super Science Centers
- G1 Wind!
- G1 Living Museum Props
- G1 A Reason for the Seasons
- Caterpillar images
- G2 Super Science Centers
- G2 Fantastic Forests
- G2 Dinosaurs are DINOmite!
- Dinosaur pictures
- G3 Earthbound
- G3 Blast Off!
- G3 Stargazing
- G3/G4 Welcome to the NHCS Zoo!
- G4 Wonderful Water
- G4 Clean It Like Mother Nature!
- G4 Adam, the Atom
- Maps of the United States
- Cloud Pictures
- Anatomy of a Flower
- G5 Lift it with a Lever!
- G5 Pinball Wizard
- G5 Rube Goldberg Machines
- Images of lunar landing space crafts
- G6/7 Biomimicry and Arthropods
- Enrichment- Shadow Boxes
- Famous buildings
- Types of Plants
Volcano Posters
After learning about sedimentary rocks, the fourth grade discussed how igneous rocks form. We learned that igneous rocks actually form from dried lava after a volcanic eruption. Magma in the earth's mantle pushes through the earth's crust to create a volcano. When the magma reaches the earth's surface, it is renamed "lava". When it dries, it forms rock. Depending on how fast or slow it dries, the igneous rock properties can be different. Pumice is an igneous rock that can float in water because it is so light. Obsidian is an igneous rock that is shiny and black. Both are made of the same material, but because of the drying times look and feel really different.