THIS DAY IN SCIENCE: There's A Face on Mars (Viking 1) in 1976

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Poppin’ Pine Cones

Poppin’ Pine Cones

Grade 3: Life Systems Contributed by: Ellen Webb On a hot summer day, take students for a walk near coniferous trees.  If you are in luck, you may hear the snapping sound of the cones popping open naturally to release the seeds.  Pinecone seeds must be released from...