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Build a Fossil!

Second Grade Life Science Activities: Build a Fossil!

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From the Earth

When kids find out that fearsome creatures called dinosaurs once ruled the earth, it's easy to get them interested. But does your child know that fossils are the reason we know all about dinosaurs? A fun fossil activity is just the way to get your child entertained and educated. This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

What You Need:

  • Bucket
  • Plaster of Paris
  • Water
  • Paper cups
  • Vermiculite (available at garden supply stores)
  • Small plastic dinosaurs
  • Wooden spoon
  • Heavy-duty plastic spoons or metal spoons you don't mind being destroyed

What You Do:

  1. Mix equal amounts of water, Plaster of Paris and vermiculite (though the vermiculite can be less) in a bucket. Pour a small amount in paper cups. Add one plastic dinosaur to each cup and cover the toy with remaining mixture. Don't pour the mixture down any drains
  2. Let the mixture dry for 1 or 2 days. But watch out, if you wait too long it'll be too hard to use.
  3. Take the paper cup off the “rock.”
  4. Now time for the dig! Children can use spoons or, with careful supervision, use mallets. Warn the children to be careful when they're close to the “fossil,” since they wouldn't want to destroy their treasure. If you have a budding paleontologist on your hands get out a paint brush so she can dust off the indentations in the “fossil.”

After the activity you'll have some dirty, happy children. They'll have enjoyed hammering the “rocks” and feel accomplished since they'll get to keep the trinket as proof of their hard work. As they dig make sure to talk about what we know about dinosaurs, and explain that paleontologists look for fossils to find out more about the amazing animals. You'll be teaching your child a lesson about dinosaurs, as well as sparking your child's curiosity in prehistoric history.

Updated on Oct 10, 2012
Printable Workbooks from Education.com
Find a printable workbook to go along with this fun activity. See Workbooks
See more activities in: Second Grade, Life Science
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