10/7/2015 EMI1P2 Earth Materials Part 2 Taking Rocks Apart

10/7/2015 EMI1P2 Safety Rules Never put any materials in your mouth. Do not taste any chemical or material unless your teacher specifically tells you to. Do not smell any unknown material. If your teacher asks you to smell a material, wave a hand over the material to draw the scent toward your nose.

10/7/2015 EMI1P2 Safety Rules Avoid touching your face, mouth, ears, or eyes while working with chemicals, plants, animals or other science materials. Be careful when using sharp or pointed tools. Always make sure that you protect your eyes and those of your neighbors. Clean up your work space after each investigation.

10/7/2015 EMI1P2 Safety Rules Report all accidents, even small ones to your teacher. Follow directions and ask questions if you’re unsure of what to do. Behave responsibly during science investigations. Remember – students who cannot follow directions become “Observers.”

Vocabulary Review diameter – the distance across a circular object circumference – the distance around a circular object depth – how thick an object is property – a physical trait or characteristic 10/7/2015 EMI1P2

10/7/2015 EMI1P2 Earth Materials Notebooks You will record your observations on Page 4 of your Earth Materials booklet. Make sure that you take complete notes and write legibly.

10/7/2015 EMI1P2 Essential Questions These are the questions you will be able to answer after this lesson. What are rocks made of? How can you identify the ingredients of rocks?

10/7/2015 EMI1P2 Challenge Your challenge is to separate and identify as many of the ingredients in your mock rock as you can. An important job of a geologist is to find out what materials make up the rocks found in the field. This information provides evidence about what the earth is made of.

10/7/2015 EMI1P2 Special Tools Geologists use special tools such as picks to take rocks apart to observe what they are made of. Your nails will serve as your geologist’s pick for this activity. Be sure to wear your goggles to protect your eyes.

10/7/2015 EMI1P2 Taking Rocks Apart Each student will work with a rock on a paper plate. Use your “picks” to break the rocks apart and separate the different ingredients, sorting them into piles. After sorting the materials write your observations on page 4 in our Earth Materials booklet.

10/7/2015 EMI1P2 Taking Rocks Apart No. 1 students will get materials for their group. 4 paper plates 4 mock rocks 4 “picks” 4 hand lenses 4 plastic cups Begin taking your rocks apart and separating the ingredients as soon as you have your materials.

10/7/2015 EMI1P2 Wrap Up Can you identify the ingredients that make up your mock rock? If you had a rock made of other ingredients, would it be the same as your mock rock? Imagine you put all the ingredients back together. How would this new rock be the same and different?

10/7/2015 EMI1P2 Wrap Up How many different ingredients did you find in your rocks? Rocks are made up of several different ingredients.

10/7/2015 EMI1P2 Wrap Up The red gravel in your rock is a mineral. If we divide the material into smaller pieces, it would still be the same material. So red gravel is not a rock; it is made up of only one ingredient. When an ingredient of a rock cannot be divided into other ingredients, it is called a mineral.

10/7/2015 EMI1P2 Wrap Up Record the mock rock “minerals” you have discovered so far on the bottom of page 4 of your booklets.

10/7/2015 EMI1P2 Vocabulary Rock – an earth material that is made up of many different ingredients called minerals Mineral – an ingredient of rocks that is only one material – it cannot be separated into other ingredients Rocks are made up of many different minerals.

10/7/2015 EMI1P2 Clean Up Put all the gravel and shells in the cup. Number 3 of each group please take the cups to the science table.

10/7/2015 EMI1P2 Leftover Gray Materials Do you think the gray material can be separated further? How could you do that? Talk it over in your group. No. 3s, be ready to share your groups’ ideas.

10/7/2015 EMI1P2 Materials Number 4s please get 4 vials, a syringe, 4 sticky notes and a cup of water for your groups.

10/7/2015 EMI1P2 Adding Water 1. Fill the vials one-third full with leftover gray material. 2. Add water to the vials until it is about 1 cm from the top. 3. Snap on the cap and hold it tightly while shaking for a few minutes. Student No. 4 – return the water and syringe to the science table.

10/7/2015 EMI1P2 Adding Water Observe the contents and draw a picture on the first vial outline on page 5 of the Earth Materials booklet. Record your observations on page 5 after shaking.

10/7/2015 EMI1P2 Observations How has adding water helped to separate the rock ingredients? What do you notice about the way the materials are beginning to settle? What do you think will happen if the vials settle overnight?

10/7/2015 EMI1P2 Observations Do you think that there is anything dissolved in the water? How will you know? What will you observe if the ingredient dissolves? What will you observe if an ingredient doesn’t dissolve?

10/7/2015 EMI1P2 Settling We are going to let the vials settle overnight. Put your name on a sticky note and put it on your vial. Student No. 4 please take all remaining materials to the science table.

10/7/2015 EMI1P2 Vocabulary Review Rock – an earth material that is made up of many different ingredients called minerals Mineral – an ingredient of rocks that is only one material – it cannot be separated into other ingredients Rocks are made up of many different minerals.

10/7/2015 EMI1P2 Vocabulary Dissolve – when some substances mix with water, they break down into such small pieces that they seem to disappear into the water. We say the substance has dissolved in the water.

10/7/2015 EMI1P2 Content/Inquiry Chart 1. What are rocks made of? 2. What is the difference between rocks and minerals? 3. How can you identify the ingredients of rocks? 4. How can the minerals in a rock be separated?