Info on Minerals plus Videos

Class, here are some videos on Minerals and their formation:

Remember, minerals have a crystal structure inside. This means the atoms are arranged in a perfect, repeating pattern over and over.
Here's are pictures of crystal structures for 2 minerals, both of which are made up of Carbon but the atoms are arranged differently:

Also, a mineral's fixed chemical formula might also be stated as having a definite chemical composition. They both mean the same thing, that the elements that make up that mineral are always found in the same ratio throughout the mineral. So for example, in the mineral Fluorite, which has a chemical formula of CaF2, there is always 1 Calcium atom attached to 2 Fluorine atoms, throughout the whole mineral. See the picture below:

Videos and Pictures of Earth's spheres and layers (REVIEW)

Class, here are good videos to help you for the next QUIZ. The first one is on Earth's spheres and the second one is on Earth's interior layers. They're short videos. Watch them for practice. Also, don't forget to study about Earth's atmosphere. Remember there is a BrainPop video on Earth's atmosphere. Enjoy!

     

Earth's System

Here are diagrams of Earth's interior layers and what they are composed of. Click on the pictures to see them bigger:

One last thing, here is an excellent website where you can find more great pictures on Earth's layers and an interactive video too. Just click here--> Layers of the Earth

Earth's Interior Layers Explained

Class, these are the notes from today's class on Earth's interior layers:

The Crust:

* The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers.

*The crust makes up 1% of the Earth.

* The crust of the Earth is broken into many pieces called tectonic plates.

The Mantle:

*The mantle is the layer below the crust.

*The mantle is the thickest layer of the Earth, where magma is found.

*The mantle is divided into two regions: the upper and lower sections.

The Outer Core:

* The core of the Earth is like a ball of very hot metals.

* The outer core is liquid.

* The outer core is made up of iron and nickel and is very dense.

The Inner Core:

* The inner core of the Earth has temperatures and pressures so great that the metals are squeezed together and are not able to move.

* The inner core is a solid.

Remember these facts about Models:

- A model is a simulation of a real event or thing.

- A model can be a physical object that is much smaller, more easily observed, or a simplified version of the real thing.

- Models can be mathematical.


HERE ARE SOME VIDEOS ON EARTH'S INTERIOR LAYERS:

Data Tables and Bar Graph Information

Information on Data tables and Bar Graphs. Click on the pictures to see them bigger:

These are ways to remember where to put each variable on the x- and y- axis, in case you forget:

- Remember to start with a 0 on the scale.

- In order to determine which scale to use, first find the range by taking the largest number in your data table and then subtracting it by the smallest number (ex: 68-22 = 46)

After you find the range, divide it by the number of boxes on the y-axis. Whatever decimal number you get, round it up to the nearest whole number and that is your scale (ex- 1.3 --> 2)

* Here is a link to show more information on bar graphs--> Bar Graph Info

LAB Safety H.W.

LAB Safety Activity

*Please study the diagram above and answer the Questions on the back of the handout you received in class. You can click on the picture to make it bigger.

Here's a link to see the picture clearer just in case --> LAB Safety Website link



Summary of LAB Safety Rules:
•Notify the teacher of any emergencies.

•Do NOT touch anything unless told to first.

•Do NOT fool around in the LAB.

•Read all LAB procedures first before doing anything.

•Keep aisles clear.

•No food, gum, or drinks allowed.

•Always wash your hands and clean up after yourself.

Here's a link to a Powerpoint that goes over all the LAB rules too. Just click on it to see it  --> LAB Safety Rules Review

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**Class, if you want to practice for the Test on LAB Safety, take this Online QUIZ to review. The answers are on the bottom of the page. Look at them after you take the Quiz --> Safety QUIZ!

Welcome to Mr. Villa's 7th Grade Science Class! 2019-2020

Welcome to my Science class everyone! I will use this blog to post important information, including class assignments, videos, links, pictures, model work from previous students, and important reminders. I'm sure you will find it helpful. Here is some information that you need to know for now:

My personal email: lvilla@pershing220.org

Science Grading Policy: 

45% Assessments

• Unit Tests
• Quizzes

35% Investigations (LABs) 

• LAB Reports- 20%
• Performance Tasks- 15%

20% Classwork/Participation/H.W.
          Class notes
         Participation
         Notebook check
         Homeworks

These are some of the topics you will learn about in 7th Grade:                                                                                    
•- Rocks and Minerals

•- Fossils and Earth’s history

•- Plate Tectonics

•- Properties of Sound and Light

•- Properties of Matter

•- Physical and Chemical changes

•- Cells

•- The Human Body

•- Animals and Plants
_______________________________________________________

                                H.W. Help:

•Dial-A-Teacher:

     Homework help for students and parents. Teachers help in all subjects and speak all types of languages. It's free too:  Monday - Thursday, 4-7 pm    Dial (212) 777-3380

OR

Homework help: http://www.homeworknyc.org/

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                                   **Anti-Bullying Hotline:                    

1-212-709-3222 (speak to a Licensed Counselor)

•   Monday-Friday, 2:30pm - 9:30pm

•   Part of the BRAVE campaign (Building Respect Acceptance and Voice through Education).

•   Beginning in January, counselors will also be accessible via text messaging and online chat.

These are websites you can go to for more information on Bullying and how to prevent it. There also links for information on how to protect your child's online privacy:

•     www.uft.org/brave (for more info)

•     www.stopbullying.gov/

•     Parent Guide for Protecting their Child on the Internet
       
         •      E-Safety Guide

•     https://www.wizcase.com/blog/a-comprehensive-cyberbullying-guide-for-parents/ (a Cyberbullying Guide for Parents)

         *  A Guide to Protecting Children’s Privacy Online


Here are some more important numbers to know just in case:

Suicide Hotline: 

1-800 Lifenet (543-3638)

Mobile Crisis:

Text "WELL" to 65173, call 1-888-NYC-WELL (692-9355)

-------------------------------------------------------------------------                              As most of you already know, we will be using PupilPath, our online grading system. PupilPath is connected to Skedula, which I talked about in class. Click here on PupilPath so you can be taken there. If you don't have a username and password, you will receive one soon.
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Parents, here is a link to the John J Pershing I.S. 220 Parent
Portal, where you can find more information about the school 
--> IS 220 Parent Portal

Human Body Organ System ANSWERS

Class, here are the main organs and functions for every organ system you studied in class. Review them for your test:

The skin, digestive, respiratory, and urinary systems make up the Excretory system:

Here's a link to Summary Notes on Organ Systems and their functions--> SUMMARY NOTES- Organ Systems and Functions

**To practice for the Test, there are a bunch of Activities to do on the following website, such as Quizzes, Matching Activities, and Fill-ins:

ScienceQuizNet

H.W.- Play the following games, and tell me what you think of them:

Arnold Game

BrainPop Game

Virtual Frog Dissection