Science+-+Pebbles,+Sand,+and+Silt

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 * Pebbles, Sand, and Silt**

Welcome! We have just started our new science kit, and this page is a great resource for the students to use to review the concepts they are learning at school and extend their learning as well. Below you will see a focus question and a description of each investigation as well as a link that you can click on to go to that investigation page. Each investigation page will include the powerpoint that was used to teach the lesson, important vocabulary, and links to extend your child's learning.

__ **Investigation 1: First Rocks** __ **Focus Question - Lesson 1.1:** //How might we sort a set of rocks by their attributes?// In this first part of the investigation, the students will be examining the attributes, or properties of different kinds of rocks such as color, shape, size, texture, and hardness. They will be sorting their rocks according to these attributes

**Focus Question - Lesson 1.2:** //How will rubbing the rocks together change the sorting?// In this part of the investigation, the students will be rubbing their rocks together and observing what happens to each rock. They will notice that some crumble, some create rock dust, and some are not changed by the rubbing. Then they will sort their rocks again. This time they will sort them by the attribute of hardness: soft, harder, hardest.

**Focus Question - Lesson 1.3:** //What do you notice when you put your rocks in water?// In this part of the investigation, the students will be drawing 3 different types of rocks when they are dry. They will then put each rock into a cup of water one at a time and then draw what the rocks look like wet and what they notice in the cup of water. They will be seeing bubbles come out of some of the rocks, the will observe color changes, and will see the water become dirty.

Click here to learn more about Investigation 1