The 2nd, 3rd, 4th, and 5th Graders posed for a picture outside in the woods during a nature walk before returning to challenging but exciting work in class. Every day they have Reading, Writing, and Mathematics workshops as well as special classes including Spanish, music, art, yoga, and physical education.
This week our 4th and 5th Graders started a conversation about the earth’s history. We all had very different ideas about the earth’s birthdate: guesses ranged from millions to trillions of years ago. We realized that we are interested in learning how scientists determine the actual age of the planet. Our questions led us to wonder about radiometric dating techniques. We will dive into this method of research to see how rocks and other geological features are used to estimate the age of our planet.
Scientists like to put everything into groups or categories that make sense. Our 2nd and 3rd Graders began with a big question. How do scientists classify everything in the universe? We learned that the universe can be categorized into two main groups: Matter and Energy. We realized that we can group all matter (stuff) into three categories based on the way it behaves. Students identified the key characteristics that scientists use to classify these states of matter. Not only were we able to articulate the different properties of the different states of matter, but we were also able to note that the different states of matter share certain key properties. That is, whether solid, liquid, or gas, they all have weight and they all take up space.