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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
Fossils
During the fourth grade earth science unit, we took a closer look at sedimentary rocks. Sedimentary rocks form when sediment collects underwater. The sediment may be soil, clay, sand, or small pebbles that sink to the bottom of a body of water and form layers. Overtime, the pressure of the water forces the sediments together and creates rock. Sometimes animals and plants die, sink to the bottom of a body of water, and get covered in these layers of sediment, thus getting trapped in the rock. This is how fossils are made. Sometimes fossils are the actual remains of a living thing that has been mineralized over the years while other times only a fossilized print is left behind. The fourth grade made model fossils using sand, shells, spray canola oil and plaster. Check out what happen when we became archeologists and uncovered our fossils.