In math, we will be taking a look at line graphs. I'll show you a new website we can use to track hurricanes, and we will use some data about the wind predictions for hurricane Katia to make a really nifty line graph. Be on the lookout for some homework assignments about graphing, also.
In science, we will continue our investigation of minerals. Your "Mineral Tic Tac Toe" assignments are due to me by Friday. In addition, we will have our first quiz of the year on Friday! I will copy/paste a study guide you can use to prepare for the quiz at the end of this post. I will give you a hard-copy of the study guide on Tuesday. We will take some time to talk about study techniques that will help you get ready for the quiz.
Mr. Brandon will be back this week to help you with your work. Ms. Carla will also come in and have another guidance lesson with you. If you are planning on ordering books from the Scholastic Book Order, please have the money (cash or check made out to "Charles Ellis") to me by Thursday. I see that some people are ordering online, too! That's great! We get free books for our classroom library every time someone places an order!
I look forward to seeing you bright and early Tuesday morning!
Mineral Study Guide
Quiz on Friday, September 9th
What is a mineral?
1. be naturally formed
2. be inorganic (nonliving)
3. be a solid
4. have a definite crystalline structure
How are minerals identified?
1. by their color
2. by their luster
a. metallic (bright, reflective)
b. submetallic (dull, reflective)
c. nonmetallic (no reflective)
3. by their streak (the color of the powder formed when rubbing it on a piece of unglazed porcelain)
4. by it’s cleavage or fracture
a. cleavage- breaking along smooth, straight lines
b. fracture- breaking along uneven, jagged, or irregular surfaces
a. Moh’s scale is used to identify a mineral’s hardness
i. 1 is soft (like talc) and 10 is hard (like diamond). All minerals will fit somewhere between 1 and 10
6. Density (the measure of how much matter is in a given amount of space)
7. Other special properties
a. Chemical reaction (will react when it comes into contact with a weak acid)
c. Radioactivity (giving off radioactive energy)
d. Magnetism (act as magnets)
e. Fluorescence (glowing under ultraviolet light)
How are minerals mined?
1. Surface mining- the top layer of earth is removed from an area where minerals are found. The minerals are removed and the earth is put back into place.
2. Subsurface mining- Deep passageways are dug into the earth to mine such minerals.