The document discusses an upcoming schoolyard hunt where students will be divided into groups to observe, identify, and compare different types of rocks and earth materials found around the school. The students will think about why certain materials like sand, pebbles, and gravel are used for surfaces like sidewalks and asphalt. They will also explore identifying clay by stirring mud puddles. After the hunt, students will play a game to identify everyday items made from earth materials and will go on a neighborhood walk to create their own list of where materials are found.

1. BY: Helen Roditis 2nd Grade ROCKS IN USE

2. Let’s Review Some Vocabulary Words that we will see in our rock unit.

3. Schoolyard Hunt Today, we will go on a schoolyard hunt. I will divide the class into four groups of 5 children. Each team will act as an geologist. You assignment is to observe, identify, and compare the sized of rocks you see outside our schoolyard and around the school. Things to think about and observe on our schoolyard hunt. 1)Why are certain materials used for certain purposes? For example: why use sand in the sidewalk and pebbles and gravel in the asphalt? 2)If you see a mud puddle, stir it with a stick and try to squeeze it into a ball to see if it holds together like clay.

4. What type of earth materials did you find in your schoolyard?

5. PEBBLE GRAVEL SAND SILT CLAY sidewalk ________ _______ mud brick _______ playground ______ ______ _______ brick _______ ______ Locations you discovered different earth materials.

6. ROCK ON CLICK ON THE PEBBLES TO PLAY THE ROCK ON GAME. TRY TO FIND 8 MATERIALS THAT ARE MADE FROM EARTH MATERIALS

7. Take a walk around your neighborhood and create your own list of locations you have found earth materials .*** Fill in the attached worksheet. Answer the following question: How do people use earth materials? Homework Assignment